Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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during an experiment, a spinner landed on green 9 times, which resulted…
Mary multiplied the 9 occurrences by 6 instead of 5.
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lonnie threw 50 free throws and missed 16 of them. if lonnie throws 75 …
Lonnie will make 51 free throws.
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during an experiment, a spinner landed on red 6 times. if the resulting…
36 (Wait, but the options given are 6, 8, 24, 48. Wait, maybe I misread. Wait, the problem: A spinner landed on red 6 times. The experimental probability of landing on red is $\fr…
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marcus performed an experiment by spinning a spinner a set number of ti…
$\frac{3}{18}$
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melanie and three of her classmates worked as a team to find the experi…
Juanita
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before a new video game is released, it is tested by a number of volunt…
2000
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to find the experimental probability of a spinner landing on green. lat…
Liam
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packaging problems | frequency box printing error | 5 underweight box |…
200
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the results of a blind taste test experiment are shown in the table. th…
$\frac{3}{25}$
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bryanna performed an experiment in which she flipped a coin and recorde…
To solve this, we analyze each statement about experimental probability (where Bryanna flipped a coin: heads = 23, tails = 27, total trials = 23 + 27 = 50): ### Step 1: Analyze "T…
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a computer manufacturer is performing a quality check to make sure the …
$0.004$ or $\frac{1}{250}$
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alisha conducted an experiment in which a spinner landed on green 7 tim…
35
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select spin to start the spinner. perform an experiment with 50 trials.…
\( \frac{2}{17} \) (or approximately \( 0.1176 \) if a decimal is preferred)
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select spin to start the spinner. perform an experiment with 50 trials.…
To determine the experimental probability of the spinner landing on red after 50 trials, we follow these steps: ### Step 1: Understand Experimental Probability Experimental probab…
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a number cube was rolled as part of an experiment. the results are show…
To find the experimental probability of rolling a 6, follow these steps: ## Step 1: Find the total number of trials First, sum up all the frequencies. The frequencies are 13 (for …
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tia performed an experiment in which she flipped a coin 100 times. the …
First blank: number of trials Second blank: relative frequency
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the experimental probability of getting a 3 on a number cube is 5/36. w…
The number 3 was rolled 5 times in 36 trials.
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analyze the table representing five experiments with an increasing numb…
With more trials, the frequency of heads up will equal the frequency of tails up.
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davis performed an experiment in which he spun a 4 - color spinner 20 t…
No. The frequencies and probabilities for red and green segments might change in the next experiment.
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spin to start the spinner. spinner 7 times. which color has the highest…
Suppose Orange has the highest frequency (e.g., 3 times), experimental probability = $\frac{3}{7}$. (Actual answer depends on spin results.)
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mason practiced basketball free throws and kept track of the results in…
Mason compared the number of free throws made to the number of free throws missed.
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flip the coin to find the probability of each event in the table. flip …
To solve this, we first note the initial trials (0 heads, 0 tails) and then consider the additional 4 flips. Let's assume we get \( h \) heads in the 4 flips. The total trials bec…
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which statements about experimental probability are true? experimental …
The true statements are: - Experimental probability is written as a ratio. - Experimental probability is found by conducting trials of an experiment. - Experimental probability in…
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matching theoretical probability match the scenario to the probability …
1. Spinning blue on a spinner with four different colors in four equal parts: $\boldsymbol{\frac{1}{4}}$ 2. Pulling a white marble from a bag of 2 white marbles and 4 red marbles:…
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the spinner is divided into 8 equal sections. which two events have the…
First, let's analyze the spinner divided into 8 equal sections. Let's count the number of each color: - Yellow: 1 section - Blue: 1 section - Gray: 2 sections - Green: 2 sections …
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margaret is playing a game with a standard deck of 52 cards which conta…
$\frac{1}{13}$
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jenny has a number cube that is numbered from 1 to 6. she rolls the cub…
$\boldsymbol{\text{P(number greater than 4)}=\frac{2}{6}(50)}$ (or the option with this expression, assuming the options are labeled, e.g., if this is option C, then "C. $\text{P(…
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a shirt rack contains 5 striped shirts, 8 solid shirts, and 6 polka dot…
19
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kevin has a spinner that has 10 equal sections and 2 sections of each c…
about 72 times
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maria has an 8-sided die that is numbered from 1 to 8. she rolls the di…
about 12 times
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which event has theoretical probability of exactly \\(\\frac{1}{5}\\)? …
spinning a number less than 3, spinning a 4 or 5, spinning a number greater than 8
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there are slips of paper that are numbered from 1 to 15 in a hat. what …
$\frac{7}{15}$
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a shape is picked at random from the group below. image of shapes: firs…
not picking a square, picking a triangle, (assuming the third option is something like not picking a circle or similar, but from the visible options, let's first analyze the total…
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sean recorded everyone’s number-cube rolls during the game. 1, 6, 2, 1,…
Sean confused theoretical probability with experimental probability.
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suppose you rolled a twelve - sided number cube instead of a standard s…
To solve this, we first analyze the game board (from the image): - **Star spaces**: Let's count. From the board, there are 4 star spaces (yellow with star). - **Question mark spac…
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your friend, shamus, suggests that you flip a coin to move either 1 or …
First blank: the coin flip Second blank: the coin flip
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it is marcie’s first turn to roll. which ratio shows the theoretical pr…
$\boldsymbol{\frac{2}{3}}$
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your friend, jamie, rolled a number cube and got the number 5. on his n…
No, Jamie is not correct.
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which theoretical probabilities are equal to 1/3? check all that apply.…
- landing on a star space on the first roll - not landing on a question mark or star on the first roll - rolling a number greater than 4 on the first roll
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you are playing a board game and your playing piece begins the game at …
C. \( \frac{1}{3} \)
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you are playing a board game and your playing piece begins the game at …
2 green spaces, 2 star spaces, 2 question mark spaces
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jana has a number cube numbered 1 to 6. she plans to roll the cube 78 t…
13
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what is autobiographical art? a. artwork expressing something about the…
A. Artwork expressing something about the artist’s life.
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luna entered a raffle for a new pair of running shoes. she purchased 20…
100
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checking your understanding marco is playing a game with a standard dec…
$\frac{1}{4}$
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a letter in the word electric is chosen at random. complete each senten…
s: - There are $\boldsymbol{8}$ possible outcomes. - The theoretical probability that a vowel will NOT be chosen is the ratio $\boldsymbol{\frac{5}{8}}$. - The theoretical probabi…
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a bag contains 4 red marbles, 3 blue marbles, and 3 yellow marbles. mat…
- P(blue) : 3/10 - Total number of marbles : 10 - Number of red marbles : 4 - Number of blue marbles : 3 - P(red) : 2/5
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ava flipped a coin 2 times. what are all the possible outcomes in the s…
D. TT, TH, HT, or HH (assuming the last option is labeled D; if the original options had labels like A, B, C, D with the last one being TT, TH, HT, or HH, then the answer is that …
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match each figurative language device with its definition. column a 1. …
1. Alliteration - c (The repetition of usually initial consonant sounds in two or more neighboring words or syllables) 2. Hyperbole - b (Exaggerated statement or claim not meant t…
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does adding fertilizer affect the productivity of tomato plants? to ans…
- tomato plants: Experimental Units - use of fertilizer, no use of fertilizer: Treatments - total weight of tomatoes: Response Variable - fertilizer: Explanatory Variable
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how does sleep deprivation affect your ability to drive? a recent study…
- Response variable: g. performance measured in assigned tasks - Blinding: h. researchers evaluating subjects’ performance must not know which treatment is being applied at the ti…
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matching the meaning of key features of a graph match the key aspect of…
- \(x\) - intercept: location on graph where output is zero - \(y\) - intercept: location on graph where input is zero - \(f(x)>0\): intervals of the domain where the graph is abo…
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the latin term \ceteris paribus\ means \false unless proven true.\ \obv…
"other things remaining the same." (the option with this text, e.g., if it's the third option in the list, it would be: 3. "other things remaining the same.")
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which day was the weather forecast most accurate? forecast vs actual te…
Thursday (the option: Thursday)
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hey, high school student! “oh man, i sent in my fafsa, but it is saying…
A. You need to submit more documentation to have your application approved.
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a game show viewer monitors how often a wheel numbered 1 through 5 stop…
10
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a math textbook explains probability by showing a set of cards numbered…
9
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a marketing research firm asked people how many times they visited the …
12
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some students compared how many pairs of boots they own. pairs of boots…
22
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for a study on numerical psychology, people were polled about which num…
2
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as part of a statistics lesson, miss cohen asked her students how many …
6
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an sat prep course claims to increase student scores by more than 60 po…
We reject the null hypothesis and conclude that there is sufficient evidence at a 0.01 level of significance to support the claim that the SAT prep course increases student scores…
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an sat prep course claims to increase student scores by more than 60 po…
\( 1.956 \)
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test scores to find the average of a students test scores, add the scor…
\(\frac{85 + 92 + 88 + 98}{4}\)
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material culture includes multiple choice the values, beliefs, behavior…
D. any physical object or technology produced by members of a society. (Note: Assuming the options are labeled A, B, C, D in order. If the original options have different labels, …
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you’re applying to be a housekeeper! craft an answer for: how would oth…
People would describe me as detail - oriented, reliable, and hard - working. I'm also very organized, patient, and have a warm, friendly demeanor, which helps me connect with othe…
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suppose a woman marries her butler. after they are married, her husband…
First blank: decreases (or falls) Second blank: increase (or be adjusted to include) (Note: For the first blank, common options could be "decreases", "falls", "drops" etc. For the…
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multiplication and addition are both ░░░░░░░░░░░░░, which means the ord…
Commutative (the option labeled "Commutative")
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the employment statistics computed from the establishment survey do not…
those who are self - employed.
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the dot plot of time (in minutes) it takes employees to drive to work i…
15
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the dot plot of time (in minutes) it takes employees to drive to work i…
The mean is $\boxed{18.8}$ (rounded to one decimal place).
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identify any clusters, gaps, or outliers in the histogram. model year 2…
A. There is a cluster between 475 miles and 525 miles, F. There is a gap between 225 miles and 275 miles
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the scores and their percent of the final grade for a statistics studen…
91.60
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for the month of april, a checking account has a balance of $561 for 21…
738.27
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the mean scores for students in a statistics course (by major) are show…
89.00
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the gas mileages (in miles per gallon) for 35 cars are shown in the fre…
32.4
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the number of hospital beds in a sample of 20 hospitals is shown below …
| Class | Frequency | |------------|-----------| | 130–164 | 7 | | 165–199 | 6 | | 200–234 | 3 | | 235–269 | 3 | | 270–304 | 1 | For the histogram shape: The left (lower) classes …
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the number of hospital beds in a sample of 20 hospitals is shown below.…
| Class | Frequency | |-------------|-----------| | 129–165 | 9 | | 166–202 | 4 | | 203–239 | 3 | | 240–276 | 3 | | 277–313 | 1 | For the histogram shape: The frequencies start hi…
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during a quality assurance check, the actual contents (in grams) of six…
### Part (a) #### Mean Calculation # Explanation: ## Step1: Sum the data values We have the data: \(1527, 1526, 1506, 1515, 1528, 1516\). The sum \(S\) is calculated as: \(S = 152…
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the weights, in pounds, of packages on a delivery truck are shown in th…
A. The median represents the center of the data set. ### Part 2: Finding the Mode
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fahrenheit 451 – reading assignment 7 analysis questions for pages 88-9…
In the dialogue from “Doesn't everyone look nice!” to “Swell!”, the ladies talk about how people look in a very superficial way, focusing on appearances rather than anything meani…
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the weights, in pounds, of packages on a delivery truck are shown in th…
A. The mean represents the center of the data set. #### For the median - related question:
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the weights, in pounds, of packages on a delivery truck are shown in th…
A. The mean is \(29.4\)
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find the mean, median, and mode of the data, if possible. if any of the…
Mean: \(60.3\) minutes, Median: \(60.5\) minutes, Modes: \(72\) minutes and \(113\) minutes
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if a part of a design is emphasized, what is it meant to do? select fou…
A. stand out, C. catch the viewer’s attention, D. contrast with the rest of the piece, E. differ in terms of color, shape, texture, or size
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the tuition and fees (in thousands of dollars) for the top 14 universit…
Mean: \(\approx 42.64\) (thousand dollars), Median: \(44\) (thousand dollars), Mode: \(44\) (thousand dollars)
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the ages of the members of a legislature from a particular state are li…
- Mean: \(\approx 46.11\) - Median: \(44\) - Mode: \(44\)
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find the mean, median, and mode of the data, if possible. if any of the…
- Mean: \(\approx 10.34\) - Median: \(10.1\) - Mode: \(9.8\)
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4. a researcher suggests that small doses of hyaluronic acid (ha) will …
- **Null Hypothesis (\(H_0\))**: Small doses of hyaluronic acid (HA) do not promote water uptake in human skin and do not reduce symptoms of dryness and dehydration (i.e., there i…
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the number of credits being taken by a sample of 13 full - time college…
- Mean: \(\frac{120}{13}\approx9.23\) - Median: \(9\) - Mode: \(8\)
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some people will tell you those treaties arent valid anymore and they s…
According to Mankiller, the people who say that old treaties are invalid because of their age are wrong. Many old documents around the world are still valid, including the United …
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question 13, 2.2.34 part 2 of 2 hw score: 95%, 15.2 of 16 points points…
The stem - and - leaf plot shows that most data values are between 16 and 27. The dot plot shows that the values 2.6 and 3.2 occur the most often, with \(\boldsymbol{2.6}\) (or \(…
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use a stem-and-leaf plot to display the data, which represent the numbe…
- Stem 2: 5, 9 - Stem 3: 0, 2, 2, 3, 5, 5, 6, 6, 6, 6, 8 - Stem 4: 0, 0, 0, 0, 0, 0, 0, 7, 8 - Stem 5: 4
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use a stem-and-leaf plot to display the data, which represent the score…
- Stem 6: Leaves 8, 8, 9 - Stem 7: Leaves 2, 5, 5, 6 - Stem 8: Leaves 0, 2, 3, 5, 5, 7, 7, 8 - Stem 9: Leaves 0, 1, 1, 1, 2, 4, 5, 8 (Pattern: Most scores are in the 80s and 90s, …
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read these lines from \sonnet 18\ by william shakespeare. and every fai…
explain that beauty can fade
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question 11 a statistician wants to obtain a systematic random sample o…
52, 165, 278, 391,... (The pattern continues by adding 113 to the previous number for each subsequent sample member) For the first few blanks (the next three numbers after 52): 16…
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question 11 a statistician wants to obtain a systematic random sample o…
113
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a statistician wants to obtain a systematic random sample of size 65 fr…
103, 215, 327, 439, ... (The next number after 103 is 215, then 327, then 439, and so on, adding 112 each time until we reach the 65th term, ensuring it does not exceed 7285.)
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3. in a city, a list was obtained from each of the 5 neighborhoods in t…
The correct sampling method is **Stratified Random Sample** (because the population is divided into strata (neighborhoods), and a random sample is drawn from *each stratum*, unlik…
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directions: for each question below, please select the technique that m…
The technique is **Convenience Sampling** (assuming this is an option; if options include it, select the one labeled with "Convenience Sampling"). If the dropdown options are stan…