Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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jump to level 1 the following scatterplot is created using one of the d…
Home equity and FICO credit score
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jump to level 1 a sports enthusiast tries to determine if a teams ranki…
The predictor variable is average pay The response variable is team ranking
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challenge activities challenge activity 2.2.1: predictor and response v…
The predictor variable is: hours of sunshine The response variable is: number of fruits
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population regression function the linear regression line shows the ove…
1) Positive 2) Positive
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response and predictor variables price is approximately linearly relate…
1. A. Batting average 2. B. GDP 3. A. Fuel efficiency 4. A. Daily costs
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chapter 10 section 3: the compromise of 1850/fugitive slave act/popular…
B. extension of slavery ### Question 2
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question a town has a population of 5000 and grows at 4% every year. wh…
6580
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720448.5819272 cx3nq7 jump to level 1 a scatter plot is shown below. th…
strong, positive
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jump to level 1 three scatterplots are shown below (three scatterplots …
a) Scatterplot a
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the bill of rights amendments 4 through 8 have to do with the rights of…
It must obtain a warrant before searching property.
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figure 2.1.2: non - linear trend curve added to scatter plot for data s…
1) False 2) linear 3) non-linear
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17) $6 cdot 10^n = 18$ 18) $-4 cdot 10^n = -25$ 19) $1.6 cdot 10^x = 42…
1. $p = \log_{10}(3) \approx 0.477$ 2. $q = \log_{10}(6.25) \approx 0.796$ 3. $x = \log_{10}(26.25) \approx 1.419$ 4. $y = \log_{10}(3.4) \approx 0.531$
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example 2.1.3: height vs. age for males aged 2 to 20. the following sca…
1) B. independent 2) A. dependent 3) B. No 4) A. 16
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for the positive quantities h, j, and k, 94% of h is equivalent to 47% …
15%
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7 the manager of a gym selected a sample of 139 members at random to es…
A. The margin of error will be lower.
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in a poll, students were asked to choose which of six colors was their …
3705
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lucia has some tiles with numbers on them, as shown. she puts them in a…
Choosing a tile with the number 4
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match each description to its probability. \\(\frac{9}{60}\\) \\(\frac{…
$\frac{9}{60}$ → unlikely $\frac{22}{40}$ → about as likely as not $\frac{18}{18}$ → certain $\frac{27}{30}$ → likely
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amira spins this spinner. the spinner has 5 equal - size sections. dete…
Closer to 1
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determine if the probability of each event is closer to 0 or closer to …
Closer to 0
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determine if the probability of each event is closer to 0 or closer to …
Closer to 0
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erick has a collection of 8 brown fingerboards, 4 green fingerboards, a…
E
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rick has a collection of 8 brown fingerboards, 4 green fingerboards, an…
E
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erick has a collection of 8 brown fingerboards, 4 green fingerboards, a…
1. A green fingerboard is chosen: Point B 2. A blue fingerboard is chosen: Point A
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erick has a collection of 8 brown fingerboards, 4 green fingerboards, a…
B
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the amount of garbage, g produced by a city with population p is given …
\( f(30) = 8 \)
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4. identify the equation that could be used to solve the question below…
1. For "What number is 25% of 3?": $\boldsymbol{x = (0.25)(3)}$ 2. For "What number is 40% of 50?": $\boldsymbol{x = (0.4)(50)}$
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3. identify the equation that could be used to solve the question below…
B. $0.5x = 75$
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calcium 1% iron 2% * percent daily values are based on a 2,000 calorie …
$\boldsymbol{\frac{4}{121} = \frac{x}{100}}$ (the last option)
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felix has fourteen cards. each card has a different number from 1 to 14…
- "less than 15" → Certain - "even" → As Likely as Not
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felix has fourteen cards. each card has a different number from 1 to 14…
Drag "less than 15" to the "Certain" box.
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felix has fourteen cards. each card has a different number from 1 to 14…
Drag "less than 15" to the "Certain" box.
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a bag contains 9 purple erasers, 18 orange erasers, and 9 pink erasers.…
- green → Impossible - pink → Unlikely - orange → As Likely as Not - orange or pink → Likely
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a bag contains 9 purple erasers, 18 orange erasers, and 9 pink erasers.…
- Green: Impossible - Pink: Unlikely - Orange: As Likely as Not - Purple: Unlikely
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the graph shows information about the value of two houses in different …
30 thousand dollars (or 30000 dollars, as a whole number)
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a movie theater offers a reward program that charges a yearly membershi…
$y=5x+15$
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use the formula for exponential change to predict the population of eac…
Approximately 516400 ### 2. Beijing, China (1980 population)
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the passage could best be used to explain which of the following develo…
D. Enslaved peoples and their descendants used violent means to escape oppression and maintain their freedom.
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donna is recording the percentages she earned on eac 78, 80, 86, 82, 78…
The range of the data set is \(19\).
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6.6 mastery check: healthy relationship reflection due:thursday, jan 22…
1. **Top Healthy Relationship Tip 1: Practice Active Listening** Active listening means giving your full, undivided attention when your partner speaks, avoiding interruptions or p…
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ush financial is examining the use of its midtown atm 39, 41, 5, 43, 26…
38
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select the correct answer. what is 42% of 75? a. 315 b. 105 c. 31.5 d. …
C. 31.5
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select the correct answer. saul works as a gardener. in one garden he p…
D. 60 flowers
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select the correct answer. aneel has 4 64-ounce cartons of orange juice…
C. 352 ounces
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select the correct answer from each drop-down menu. the cost of one pou…
The cost of one pound of peanuts is $\boldsymbol{1.20}$. The total cost of two pounds of peanuts and one pound of cashews is $\boldsymbol{4.40}$.
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select the correct answer. at trents garage, 3 cases of brake fluid las…
D. 5 cases
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select the correct answer. marcus bought 1.35 pounds of columbian coffe…
C. 3.19 pounds
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the structure of state government the legislative branch creates laws f…
the power to tax and borrow money
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let ( d ) be the unknown distance the satellite travels (in kilometers)…
The proportion is $\frac{350}{40}=\frac{d}{8}$ and the value of \( d \) is 70.
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the graph below shows the amount of money left in the school’s desk fun…
\$110
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i become aware for the first time today of the immense silence in which…
The author includes sensory details like the creak of some bird to help the reader imagine the scene.
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read the text. i become aware for the first time today of the immense s…
to describe how it feels to be in a desert wilderness
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teks: 8.9(...) -- ... 5. how does elliot west’s tone toward indian remo…
5. C. It highlights the serious consequences of government actions 6. C. Indian removal is beneficial to both Native Americans and the nation 7. C. "It will place a dense and civi…
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latoya wants to estimate ( p ), the proportion of all students at her l…
0.176 to 0.384
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what proportion of students are willing to report cheating by other stu…
$SE_{\hat{p}} = 0.0239$
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a recent poll of 738 randomly selected customers of a major u.s. cell -…
0.205 to 0.256
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you have 6 pizzas and you want to give each person \\(\\frac{2}{8}\\) o…
1. 24 people 2. $78 - 14$ 3. $1\frac{5}{6}$ or $\frac{11}{6}$ 4. 10.5
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choose and collect representations of the model shown.
If we assume the model is fraction multiplication of $\frac{3}{4}$ and $\frac{1}{2}$, the result is $\frac{3}{8}$.
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choose and collect representations of the model shown. done $2 \\times …
The correct representations are: - $2\times\frac{3}{4}$ - "2 groups of $\frac{3}{4}$" - $\frac{3}{4} + \frac{3}{4}$ (If choosing from the two given boxes: the correct one is $2\ti…
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suppose one hundred eleven people who shopped in a special t - shirt st…
41%
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the impeachment process impeachment charges an officeholder with miscon…
articles of impeachment
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article 1 of the constitution article 1 of the constitution lays out th…
Congress is made up of two chambers
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4 from unit 5, lesson 2 function g takes a students first name for its …
The first name "Jada" has 4 letters (since function \( G \) outputs the number of letters in the input first name, and here the input is "Jada" with output 4). #### Part b
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compromises of the new government the u.s. constitution debate at the c…
the Senate
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the french and indian war from alliance to swelling tension like all co…
liberty
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in the early 1900s, what did it mean for cities to be \dry\? cities had…
C. Cities restricted the sale and consumption of alcohol.
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a coin is tossed three times, with possible outcomes: {hhh, hht, hth, t…
The graph with X - axis values 0,1,2,3 (the bottom - left graph) where \( P(X = 0)=P(X = 3)\approx0.125 \) and \( P(X = 1)=P(X = 2)\approx0.375 \)
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a teacher categorized students by whether they regularly completed home…
(a) 0.65 (b) 0.48 (c) 0.71 (d) 0.88 (e) No
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constructing a probability distribution coin toss heads: x probability:…
\( a = 0.25 \) \( b = 0.5 \) \( c = 0.25 \)
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what does the italicized word mean in the following sentence? ¿puedo to…
to take
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a town has a population of 12000 and grows at 5% every year. what will …
21550
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given the following exponential function, identify whether the change r…
Growth, 9% increase
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given the following exponential function, identify whether the change r…
Decay, 8% decrease
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3 multiple choice 1 point when buying a home, the initial amount borrow…
3. principal 4. the cost of making one decision over another
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as part of a statistics project, a teacher brings a bag of marbles cont…
1. The data collection method: Observational Study 2. The target population consists of: The 900 marbles in the bag 3. The sample consists of: The 100 marbles drawn by the student
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in the data set below, what is the interquartile range? 12 31 32 40 43 …
$37$
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reviewing computing probability when rolling two fair dice, the probabi…
A. different.
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(algebra 1, unit 1, lesson 14) a large company releases summary statist…
A. Yes ### Reasoning: Using the IQR method, the interquartile range (IQR) is $18,000$. The lower outlier threshold is $23,000$, and the minimum salary of $18,000$ falls below this…
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reviewing computing probability if two fair dice are rolled, there are …
3 (Assuming the question is about rolling a sum of 4, as the original question was cut off but following the pattern of the example with sum 3. If the actual sum is different, the…
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with a fair die, the probability of rolling any number 1 through 6 is t…
1
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in the data set below, what are the lower quartile, the median, and the…
lower quartile = $3$ median = $6$ upper quartile = $7$
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a fair die is a cube with numbers 1 through 6 on the sides, represented…
1/6 (corresponding to the option with value 1/6)
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question 7 the article says: like the huge snapple ice pop in new york …
A. large
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the theoretical probability of an event is the number of ways an event …
\( \frac{1}{13} \) (corresponding to the option "1/13")
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lincoln high wants to estimate the number of seniors who plan to go to …
A. 25 seniors are randomly selected; 14 plan to go to a 4 - year college. ### Part (b)
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reviewing computing probability the theoretical probability of an event…
\( \frac{1}{13} \) (corresponding to the option "1/13") ### Second Question (Experimental Probability of Landing on Heads):
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researchers asked 200 families whether or not they were homeowners and …
74 ### Part (b)
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read the passage, then use the explanation to infer the meaning of the …
most widely used
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a movie club surveyed 300 high school students. the students were asked…
(a) \(74\%\) (b) \(44\%\)
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when publicity stunts get goofy question 3 which means the opposite of …
A. seller
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in a survey, 150 shoppers were asked whether they have access to a comp…
(a) \(58\%\) (b) \(64\%\)
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read the sentence, and use synonym context clues to determine the defin…
1. The word opprobrium most likely means strong public disapproval or condemnation. 2. A synonym for opprobrium is disapproval.
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each of the 5 cats in a pet store was weighed. here are their weights (…
(a) Mean: 8.6 pounds (b) Median: 8 pounds
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rosanne has been babysitting on the weekends to make money to buy a new…
The distribution of the amounts earned is best described as **right-skewed**. So, the **median** is a more appropriate measure of variation central tendency than the **mean**, and…
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dave kept track of the rainfall in his hometown of oak valley during ea…
The distribution of the rainfall is best described as **approximately symmetric**. So, the mean **is** an appropriate measure of center.
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Question was provided via image upload.
\(0.03\) #### 2. \(0.1 \times 0.6\)
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bike rental (0, 12) (2, 20) (4, 28) (6, 36) (8, 44)
All given points (0, 12), (2, 20), (4, 28), (6, 36), (8, 44) lie on the line $y=4x+12$ and are valid for the bike rental graph. If the task is to confirm all fit the pattern, all …
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standard deviation fiona recorded the number of miles she biked each da…
\(\boldsymbol{\sigma^2=\frac{(4 - 6)^2+(7 - 6)^2+(4 - 6)^2+(10 - 6)^2+(5 - 6)^2}{5}}\) (the second option)
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the monthly mean salaries and standard deviations of four college stude…
The monthly salary of Shenika is less spread out than the monthly salary of Clarissa.
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below are the dot plots for two data sets. (a dot plot is sometimes cal…
Mean of Data Set A: \(6.5\) Mean of Data Set B: \(6\)