Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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l = 585.081 · \\frac{71}{360}
$\approx 10.95$
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multiple choice question each of the following is a measure of position…
the standard deviation
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find the first and third quartile for the data shown\ x\ 1.2\ 3.4\ 8.2\…
$Q_1 = 8.2$, $Q_3 = 27.6$
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1 a box of granola weighs 24 ounces. a box of bran flakes weighs \\(\\f…
18 ### Question 2
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when you create a dot plot, you do which of these operations? connect a…
The correct option is: Place a dot along a horizontal scale for each observation.
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multiple choice question which of the following is true regarding dot p…
B. Dot plots do not lose the identity of individual observations
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02/17/25, nf.4 classwork 2 student: class: date: 1. a box of granola we…
18 ### Question 2
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2 jeff has practice 3 times this week. each practice is \\(\\frac{3}{4}…
B. $2\frac{1}{4}$ hours ### Question 3
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the table shows a function. is the function linear or nonlinear? x | y …
linear
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the table shows the test scores of students who studied for a test as a…
The correct option is: "Both distributions are nearly symmetric, so the mean and the standard deviation are the best measures for comparison."
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multiple-choice question whats the meaning of this personification? \th…
D. Photos of me are always really good. (assuming the options are labeled A - D in order as: A. I own an expensive camera., B. I like to visit art museums., C. Photography is one …
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who can ride? luis is allowed to ride the kiddie swings. omar is 6 inch…
Yes
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section of text balthasar. as i did sleep under this yew tree here, i d…
1. Balthasar's dream is a direct foreshadowing: It shows his master Romeo killing another man, which exactly foreshadows Romeo fighting and killing Paris at Juliet's tomb. 2. What…
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aring data sets the box plots show the data distributions for the numbe…
The difference between the medians of both data sets is 2. (So the first option is correct)
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number of coupon users per hour day 1 day 2 0 1 2 3 4 5 6 7 8 9 10 11 1…
interquartile range
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shows the distributions of prices for packs of adult of kid socks at a …
median
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practice makes perfect 63.1 pham is conducting a survey for the school …
a. Pham first calculated the total number of students with either device ($175-110=65$). Then he found the sum of students with iPhones and iPads ($28+44=72$), and subtracted the …
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for the first time in his life, nicolás was at the beach! he stared in …
1. Nicolás feels like he is having a wonderful day at the beach. 2. Meanwhile, Santi thinks about how he has visited the beach often. 3. Now he wishes he could go to the ocean
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practice makes perfect 63.1 pham is conducting a survey for the school …
a. Pham first calculated total students with at least one device ($175-110=65$). Then he subtracted the students with only an iPhone (21) and only an iPad (37) from this total: $6…
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your ride you are in charge of determining the height restriction for y…
A number line with a closed blue dot placed directly at 60 (matching the provided number line range from 54 to 66), with no shaded regions or arrows extending left/right, as only …
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jack flips a coin and rolls a number cube labeled 1 through 6. what is …
0.083
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expected outcomes to the actual outcomes of standard number cubes. whic…
- The standard deviation of the actual sums is less than that of the expected sums. - The range of the sums is the same for both sets of data. - Both data sets are symmetrical.
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which table represents a linear function? a | x | y | |----|----| | 3 |…
# Explanation: To determine which table represents a linear function, we check if the rate of change (slope) between consecutive points is constant. The slope formula is $m = \fra…
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round to the nearest hundredth. 5 4.157 6 349.332 7 21.034 8 6.976 roun…
\(4.16\) ### Question 6: Round 349.332 to the nearest hundredth
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morning customers who visited ne - month period. what is the best measu…
s: 1. Best measure of center: Median 2. Best measure of variation: Interquartile range (IQR) 3. Reason: Skewed (or have outliers, so we use resistant measures) (Note: The exact op…
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4. the number $5 \\times 10^8$ is how many times as much as $1 \\times …
\(500\)
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which set of ordered pairs (x, y) could represent a linear function? a …
C
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kiddie swings you must be 48 inches or shorter to ride the kiddie swing…
To graph \( h \leq 48 \) on the number line: 1. Find the position of 48 (between 46 and 50 on the given number line). 2. Place a **closed circle** at 48 (because 48 is included, a…
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5. where should the dash be placed? this does not mean that basketball …
A. This does not mean that basketball is a game only for giants—thank goodness!
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which expression means the same as \the quotient of 8 less than x and 4…
E. $(x - 8) \div 4$
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ws the yearly earnings, in thousands of dollars, over a for college gra…
The distribution of earnings for wage earners is more symmetric than the distribution of earnings for the self - employed.
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e shows the monthly data usage in gigabytes for two cell on a family pl…
s: - Range of primary phone: \( \boldsymbol{0.28} \) - Range of secondary phone: \( \boldsymbol{0.73} \) - Median difference: \( \boldsymbol{0.48} \)
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3. which shows the number 6,350 in scientific notation? a 6×10³ b 6.35×…
C. \( 6.35 \times 10^3 \)
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b. complete the table to show the number of pages noah reads in the fir…
b. The completed table is as shown above (all values are correctly filled). c. 20 d. $p = 20d$
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the histogram shows the number of morning customers who visited north c…
The north restaurant can expect about 55 morning visitors.
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the box plots show the distributions of daily temperatures, in °f, for …
(Assuming the two correct answers are "Both distributions are skewed right" and another correct statement like "The median temperature in Longview is higher than in Cedar Rapids" …
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4 complete the table to show the number of pages noah reads in the firs…
| Number of Days, $d$ | Calculation | Number of Pages, $p$ | |----------------------|-------------|-----------------------| | 1 | $1 \times 20$ | 20 | | 2 | $2 \times 20$ | 40 | |…
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warm-up here are two signs for two different rides at an amusement park…
Roller coaster
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aring data sets shana is fostering two kittens, janet and mr. paws. the…
s: - The median amount of Janet’s food is $\boldsymbol{\text{less than}}$ the median amount of Mr. Paws’ food. - The range of Janet’s food is $\boldsymbol{\text{less than}}$ the r…
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four math classes recorded and displayed student heights to the nearest…
# Explanation: ## Step1: Recall skewed left definition A left - skewed (negatively skewed) histogram has a longer tail on the left side. This means that the majority of the data i…
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1. noah reads 20 pages of a novel each day. he wants to determine the n…
The independent variable is $d$ (number of days Noah reads), and the dependent variable is $p$ (number of pages Noah reads). The total pages read ($p$) depends on how many days ($…
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four math classes recorded and displayed student heights to the nearest…
# Explanation: To determine a left - skewed histogram, we use the definition of left - skewness: a left - skewed (negatively skewed) distribution has a longer tail on the left sid…
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on your restaurants menu, you need to make sure that \\(\\frac{3}{4}\\)…
12
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examine los datos dados para un tallo de maíz. día, ( x ): 9, 12, 22, 4…
$a \approx -76.5$ $b \approx 37.8$ Día más cercano: 51 días
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the number represented by the model is different depending on which blo…
Smallest block represents 1: $2033$ Largest block represents 1: $2.033$
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lesson check (cc.6.ns.8) 1. richie wants to paint his bedroom ceiling a…
1. $\boldsymbol{\frac{8^2(4+1)}{40}}$ (Option A) 2. $\boldsymbol{A. 9 boxes}$ 3. $\boldsymbol{B. 16 tickets}$ 4. $\boldsymbol{C. 69}$ 5. $\boldsymbol{A. 2.5 pounds}$ 6. $\boldsymb…
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antonio is renting a car on vacation. cost 0 100 200 miles driven 0 25 …
According to the graph, the miles driven is a function of the cost of the car rental.
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name for enslaved laborers in sparta; from the greek word meaning \capt…
C. helots
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3. the temperature in city c is greater than 2°c. let c represent the t…
The inequality is \( \boldsymbol{c > 2} \). To graph it, place an open circle at \( 2 \) on the number line and draw an arrow pointing to the right (towards positive infinity).
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which question would likely have a variety of answers and could be anal…
A. How many hours do ninth graders spend on homework each week?
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which of the following is a statistical question? ○ what is the average…
A. What is the average height of students in the ninth grade at our school?
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given the data points (1, 3), (2, 5), and (3, 7), what is the equation …
B. y=2x+1
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which of the following best describes the purpose of a line of best fit…
To show the general trend of the data points.
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given the data points (1,2), (2,3), (3,5), and (4,4), which equation is…
D. $y=0.5x+2$
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what would a perfect negative correlation look like on a scatterplot? ○…
All points lie on a straight line that slopes downward from left to right.
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if the points on a scatterplot trend upward from left to right, what ki…
Positive correlation
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casey and jayden look for animal footprints in the woods. casey finds 1…
The third bar model (Jayden: \( f \), Casey: \( f \) \( f \), total 18)
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jordyn weighs ingredients on a kitchen scale to make bread. the bowl we…
4
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mparing data sets with boxplots oyster volume (cc) which statements are…
The statement “Oysters tend to have more volume than mussels” is true (e.g., if it’s an option to select, mark it as correct).
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keona and ethan write poetry in english class. keona writes 8 lines of …
Ethan writes 16 lines of poetry. ### Part 2: Which bar model represents the problem?
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question #14 which statement about the relationship between correlation…
Question #14: A. Causation implies correlation. Question #15: A. -0.95
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task 2: key concepts use the key terms below to write an essay of over …
## Title: Demystifying Payroll: From Gross Earnings to Take-Home Pay Understanding payroll means navigating a chain of terms that turn raw earnings into the money employees actual…
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question #9 a strong, positive linear correlation is found between heig…
Question #9: D. 0.9 Question #10: C. The variables have a weak, negative correlation
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algebra: concepts and connections - plc comparing data sets analyzing h…
The distribution for Illinois is skewed
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question 15 consider the given table. | x | y | |----|----| | 1 | 5 | |…
A. The correlation coefficient of -1 indicates that the x and y values have a perfect linear relationship.
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a set of data is shown to have a correlation coefficient of 0.15. what …
B. There is a weak positive linear correlation between the x values and y values.
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question 5 several linear models are used to describe the relationship …
A. -0.98
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a dart is dropped above the target shown in the diagram. the dart has a…
0.04
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question 2 1 pts a dot plot shows 5 dots above the number 7. what does …
The value 7 appears 5 times
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scientists are tracking a wolf. the graph shows the proportional relati…
$y = 12x$
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which display is best for showing the frequency of data grouped into in…
A. Histogram
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question 15 the graphed function shows the profit or loss for pizzawhiz…
B. The slope is 2.5; it represents the profit or loss made on each stand
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jason is making fruit salad for a family picnic. at the market, he spen…
2.5 pounds
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2. the temperature in city b is less than 2°c. let b represent the temp…
The inequality is \(b < 2\). To graph it: - Place an open circle at \(2\) on the number line. - Draw an arrow pointing to the left from the open circle to represent all values of …
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4. the list shows the amount of each item needed in a fruit salad recip…
A. $\frac{1}{8} + \frac{1}{8} + \frac{8}{8}$ E. $\frac{1}{8} \times 10$
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inequalities and solutions 1. the temperature in city a is 2°c. let a r…
The equation is \( \boldsymbol{a = 2} \). To graph it, place a closed dot at \( 2 \) on the number line.
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order the numbers from least to greatest. $-\frac{3}{5}, -\frac{1}{2}, …
E. $-0.61, -\frac{3}{5}, -\frac{1}{2}, -\frac{5}{11}$
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which function represents the data in the table? the table has two colu…
D. \( f(x)=\frac{x}{4}+1 \)
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question 8 1 pts what is the mean of the data 2, 9, 7, 4? ○ 6 ○ 5 ○ 4 ○…
5.5
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question 6 what is the median of the data 3, 3, 6, 9, 13, 15? ○ 6 ○ 7.5…
B. 7.5
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question 5 1 pts which measure of central tendency is most affected by …
Mean
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question 4 1 pts what is the range of the data 15, 9, 20, 11? 11 6 20 9
11
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modeling real life you are assigned 32 math exercises for homework. you…
8
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read the passage from the novel the catcher in the rye. in the passage,…
The narrator feels nervous for Phoebe but thinks children need to try things on their own.
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question 3 1 pts what is the mode of the data 8, 2, 4, 8, 3, 2, 8? 2 an…
8
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read the passage. autumn is a colorful time in many places. in preparat…
plant leaves
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question 1 what is the mean of the data 4, 6, 7, 3, 10? ○ 2 ○ 30 ○ 6 ○ …
C. 6
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write and solve a proportion to answer the question. \\(\frac{3}{4}\\) …
The blank should be filled with $\frac{60}{100}$ (or $\frac{3}{5}$). And the number $n=\frac{5}{4}$ (or 1.25). But for the proportion $\frac{\frac{3}{4}}{n}=\square$, the $\square…
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modeling real life of 140 seventh - grade students, 15% earn the presid…
21
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choose tools use a model to answer the question. use a proportion to ch…
84
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choose tools use a model to answer the question. use a proportion to ch…
\( 50 \)
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choose tools use a model to answer the question. use a proportion to ch…
25
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choose tools use a model to answer the question. use a proportion to ch…
25%
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use the table to answer the question. find the rate of change. number o…
\$4.50 per person
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(a) identify the shape of the distribution, and (b) determine the five …
a. B. The distribution is skewed left b. $0$, $8$, $12$, $16$, $20$
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choose tools use a model to answer the question. use a proportion to ch…
16
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(t2) (7 points) which of the following represents the slope of the line…
-75; the value drops $75 every year
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(a) identify the shape of the distribution, and (b) determine the five …
C. The distribution is roughly symmetric ---
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2. there are 12 pounds of dirt to be shared equally among 8 flowerpots.…
Each flowerpot should get 1.5 (or $\frac{3}{2}$) pounds of dirt. To explain: We divide the total 12 pounds of dirt by the 8 flowerpots because we are distributing the dirt equally…
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question 11 the local ice cream shop offers 3 different types of cones …
a. 42 ### Question 12