Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
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now its time to practice on your own use a double number line diagram t…
225
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now its time to practice on your own use a 10-by-10 grid to solve. 30% …
400
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now its time to practice on your own use a 10-squares model to solve. 4…
10 (Option A)
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now its time to practice on your own use a 10-squares model to solve. 1…
120
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now its time to practice on your own use a 10-by-10 grid to solve. 34 i…
425
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sara is getting ready to bake cakes for a bake sale. it takes her 30 mi…
B) 310 minutes
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15 is 60% of what number? enter your answer in the box. 15 is 60% of □.
25
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worked examples try using models to find a whole practice with percents…
From left to right, the missing values are 5, 10, 20, 25
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since each square represents 10%, 7 squares represents 70%. second, the…
1. The correct drop-down choice is 7 2. The total value of all 10 squares is $10 \times 8 = 80$
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austin has a part-time job at an ice skating rink selling hot cocoa. he…
When the day's high temperature is 25 degrees, the line of best fit predicts that Austin will sell 80.9 hot cocoas.
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charlie saves 70% of his earnings from his part-time job. he saves $56 …
Shade 7 of the 10 squares. Charlie earns $80 each week.
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finally, 12 is 30% of what number? enter your answer in the box. 12 is …
40
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nolan has a part-time job at an ice skating rink selling hot cocoa. he …
When the day's high temperature was 22 degrees, Nolan sold 105 hot cocoas.
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since each square represents 1%, 30 squares represent 30%. second, the …
First dropdown: 30 Second dropdown: 0.4
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1. how is 120,700 written in scientific notation?$\bigcirc$ $120.7 cdot…
1. $1.207 \cdot 10^{5}$ 2. $0.000675$ 3. There is not enough information to answer this question
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to find what number 12 is 30% of, use a 10-by-10 grid. first, shade the…
Shade 30 cells in the 10-by-10 grid (for example, the first 3 complete rows, or any combination of 30 individual cells). Additionally, to solve the original question "what number …
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work with words 1. match the figures of speech with their meanings. fig…
1. Tip the scale negatively - c) Cause more harm than good 2. We need a thirst for knowledge - d) we need to want to learn 3. One giant leap for mankind - a) Great progress for hu…
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correct answer: shade the first 8 squares. each square represents 10%. …
1. $7.5$ 2. $60$
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check for understanding do you remember how to use a 10-squares model t…
Shade the first 8 squares (leftmost 8 of the 10 total squares).
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independent practice directions: answer the multiple choice questions f…
1. B. Courage is choosing to stay strong in the face of struggles. 2. A. It symbolizes the speaker's suffering. 3. B. They are unlucky. 4. C. undefeated
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a. key terms and concepts directions: match each item with one of the d…
## Part A: 1. a. authoritarian 2. d. communism 3. c. command economy 4. f. socialism 5. b. centrally planned economy 6. e. economic equity ## Part B: 7. c. authoritarian governmen…
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a good topic can you identify a good topic? use these questions to test…
- It should be focused on one experience. - It should have meaning for the writer.
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which aircraft did beyoncé reportedly purchase as a gift for jay-z? a. …
1. A. Gulfstream G650 ER 2. A. It has three engines 3. C. 16
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turian, a candy store employee, placed peppermint candies into jars of …
6 jars
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the root puls means drive or push. what does the word impulsive mean?in…
Inclined to act upon a sudden urge, without careful thought
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at the candy factory dispensed different numbers of lemon-flavored cand…
50-59 lemon-flavored candies
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ke avoir, the verb être is an irregular verb. this means that it does n…
### Exercise 6 1. Je **suis** sympathique. 2. Le professeur **est** créatif. 3. Les élèves **sont** intelligents. 4. Marine et Jacques **sont** pénibles. 5. Mes amis et moi, nous …
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farmer repfol started with some quects on his farm. after 7 days, he ha…
Rate of change: 5 quects per day Starting amount: 26 quects
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a person travels by car. they record their miles driven in a data table…
$y = 61.93x - 1.79$
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the chart below tracts starting salaries for health care workers since …
$y = 839.721x + 27541.812$
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question 3 (10 points) listen why must odysseus especially be cautious …
they are descended from and closely aligned with Poseidon
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using the desmos calculator, find the line of best fit data 71 84 66 77…
\(y = 4.19x - 163.41\)
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using desmos, write the equation for the following data points. round t…
$y=-0.4x-1.8$
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using the desmos calculator, find the line of best fit. round to the ne…
$y = -0.27x + 3.93$
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damien has a collection of sports cards. there are 20 cards in the coll…
1. B. 24 2. $\frac{3}{4}$
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abdallah has a collection of toy figurines. there are 15 figurines in t…
1. B. 18 2. $\frac{3}{4}$
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tracey has a collection of sports cards. there are 18 cards in the coll…
## First question: C. 24 ## Second question: $\frac{4}{5}$
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when the government provides streetlights, it is addressing which of th…
1. A public good 2. True
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max has a collection of video games. there are 32 games in the collecti…
1. B. 16 2. $\frac{2}{5}$
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the resale value of a textbook decreases by 25% with each previous owne…
$f(x) = 85(1 - 0.25)^x$
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this mapping shows a functional relationship. when f(x)=4, what is the …
B. 2
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amit has a collection of toy cars. there are 16 cars in the collection,…
1. C. 8 2. $\frac{2}{5}$
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which scenario can be represented using the inequalities below? $1.25 \…
B. A student spends at least 1 hour 15 minutes, but no more than 1 hour 30 minutes on homework.
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emma earns $6 each time she mows the lawn and $8 per hour for babysitti…
The correct graph is the third one (top right): it has a line connecting (0,6) and (8,0), with the region above/including the line shaded.
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what does the word \debilitating\ most likely mean as used in the first…
C. Weakening
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lavinea has a collection of sports cards. there are 12 cards in the col…
1. B. 16 2. $\frac{4}{5}$
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remaining seats to be recliners. if x is the number of stools and y is …
The correct graph is the **rightmost graph (third option)**, which shows the overlapping region of the area to the right of the solid vertical line $x=20$ and below the solid line…
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jeff has a fish tank with clownfish and goldfish. there are 9 fish in t…
1. B. 6 2. $\frac{1}{2}$
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the weight of jacobs backpack is made up of the weight of the contents …
0.7(t + 4 + 2) = t
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what is the multiplicative rate of change of the exponential function r…
1.5
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beula has a collection of video games. there are 12 games in the collec…
1. A. 12 2. $\frac{2}{3}$
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an electrician is hired to install a ceiling fan. she estimates that th…
The fourth option (left arrow with closed dot at 45, right arrow with open dot at 120)
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angel has a collection of toy cars. there are 8 cars in the collection,…
1. B. 8 2. $\frac{2}{3}$
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ike has a collection of video games. there are 10 games in the collecti…
1. C. 12 2. $\frac{3}{4}$
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read the model sentence from katherine patersons bridge to terabithia. …
Maria repeated the experiment until she was practically a zombie from fatigue, not believing the results from the spectrometer or even her own eyes.
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jigsaw research guidespace explorationmy assigned research topic is...a…
| Supporting Details | My Notes (evidence, statistics/data, research, etc.) | Source(s) | |---------------------|------------------------------------------------------|-----------…
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a group of students used a rope swing to cross back and forth over a st…
8 feet
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wednesday 18 is what percent of 48? what # is 15% of 90?
1. $37.5\%$ 2. $13.5$
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use the graph of the function to complete the table. input output 4 5 4…
| input | output | |-------|--------| | 4 | 4 | | 7 | 7 |
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solving words problems (+ - ÷ ×)name:use addition, subtraction, multipl…
1. 72 2. 21 3. 17 4. 4 5. 4 6. 4 7. 3 8. 4 9. 20 10. 5 11. 7 12. 6 13. 2 14. 10 15. 7
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graph $x < 5$. how do i graph the inequality?
To graph \( x < 5 \): 1. Place an **open circle** at \( 5 \) on the number line (since \( 5 \) is not a solution, as \( x < 5 \) means \( x \) cannot equal \( 5 \)). 2. Draw a lin…
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read this part of the text. what does the phrase ot worth his salt\ mea…
D. not worth what he is being paid
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the text states that long ago, soldiers were paid with salt. thats how …
D. salt
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select the correct answer. (-1,1) (0,-1) (5,-11) (10,-21) what is the d…
A. \(\{-1, 0, 5, 10\}\)
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select the correct answer. ronnie took a survey of eight of his classma…
A. a relation only
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select the correct answer. a particular strain of a common bacteria rep…
B. both a relation and a function
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select the correct answer owen has enough materials to build up to 10 b…
A. D: \( 0 \leq b \leq 10 \), R: \( 0 \leq W(b) \leq 120 \)
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differences in departure times (minutes): - my air airlines: 26, 15, 40…
### Part a) My Air Airlines #### Step 1: Sort the data The data for My Air Airlines is: \( 26, 15, 40, 0, 20, 33, 20, 5, 19, 34, 11, 33 \). Sorting it in ascending order: \( 0, 5,…
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question 9 cstp standard 3.5 recommends \using and adapting resources, …
Question 9: accessible Question 10: goals
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review passage the average weekly salary for workers in private industr…
$w(12.25) = 900$, corresponding to March 2012
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we are going to calculate the standard deviation for the following set …
\(8.2\) ### 2) Fill in the table (already partially filled, but for completeness, let's verify the sum of squared differences)
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2) fill in the table below: fill in the differences of each data value …
### Part 2: Filling the Table First, we need to find the mean ($\bar{x}$) of the data set \( \{2, 11, 14, 6, 8\} \). ## Step 1: Calculate the mean ($\bar{x}$) The formula for the …
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calculate the standard deviation and variance of the sample quantitativ…
Standard deviation: \(7.35\) Variance: \(53.99\)
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module test 8. which prefix would be added to the word part -stalsis to…
B. Peri-
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students in class a and class b were given the same quiz. class a had a…
\( 5.8 \)
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8. which prefix would be added to the word part -stalsis to create a te…
B. Peri-
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calculate the sample mean and sample standard deviation of the test sco…
### Part 1: Calculate Sample Mean and Sample Standard Deviation of Test Scores #### Step 1: Find Midpoints of Each Class Interval - For \( 40 - 49 \): Midpoint \( x_1 = \frac{40 +…
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the national center for education statistics monitors many aspects of e…
Reject the null hypothesis. There is sufficient evidence to conclude that the proportion of students with perfect attendance has changed. P-value: 0.0488
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the national center for education statistics monitors many aspects of e…
0.049
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match the words and their descriptions: iqr mean, median and mode norma…
- IQR: Middle 50% of data’s range - Mean, Median and Mode: Measures of center - Normal, skewed left and skewed right: Three common descriptions of shape - Standard Deviation, Inte…
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the national center for education statistics monitors many aspects of e…
a) $H_0: p = 34\%$, $H_A: p eq 34\%$ b) All assumptions/conditions are plausibly satisfied as verified. c) Test statistic: $z = -1.97$, P-value = 0.05 (rounded to two decimal pl…
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the national center for education statistics monitors many aspects of e…
a) $H_0: p = 0.34$, $H_A: p eq 0.34$ b) - The independence assumption: is plausibly justified - The randomization condition: is plausibly justified (nationwide survey implies ra…
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the national center for education statistics monitors many aspects of e…
a) $H_0: p = 0.34$, $H_A: p eq 0.34$ b) - The independence assumption: justified - The randomization condition: satisfied - The 10% condition: satisfied - The success/failure co…
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the national center for education statistics monitors many aspects of e…
$H_0: p = 34\%$ $H_A: p eq 34\%$
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if the 1980s, it was generally believed that congenital abnormalities a…
### Part (the P-value definition): A. The P-value is the chance of observing 40 or more children with genetic abnormalities in a random sample of 373 children if 8% of children ac…
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in the 1980s, it was generally believed that congenital abnormalities a…
c) $0.027$ d) A. The P-value is the chance of observing 40 or more children with genetic abnormalities in a random sample of 373 children if 8% of children actually have genetic a…
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in the 1980s, it was generally believed that congenital abnormalities a…
### Part a (Hypotheses): F. $H_0: p = 0.08$ vs. $H_A: p > 0.08$ ### Part b (Assumptions): A. The sample is random. B. There are more than 10 successes and 10 failures. C. The inde…
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5. gavin’s grade 9 math class drinks 47 bottles of sprite in one mornin…
a) 0.094 kiloliters, 9400 centiliters b) 265 cups
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5. gavin’s grade 9 math class drinks 47 bottles of sprite in one mornin…
0.094 kiloliters and 9400 centiliters
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the highway mileage (mpg) for a sample of 8 different models of a car c…
s: Mean = 28.1 Median = 28.5 Mode = 35 Standard Deviation = 5.6
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which measure of center is sensitive to extreme values? median mode mid…
mean (assuming the first option was mean, as the first option's text is partially cut but contextually it's mean for this question type) ### Second Question: Which measure of cent…
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3. what is the meaning of eprisal\ in paragraph 4? a. behavior b. atten…
C. retaliation
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module test 8. which prefix would be added to the word part -stalsis to…
B. Per-
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try again your answer is incorrect. in a writing course, the professor …
(a) satire, comedy, drama (b) 9 (c) Abdul, Dan, Yoko
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in a writing course, the professor surveyed the students to see the lit…
(a) satire, comedy, drama (b) 8 (c) Dan, Yoko, Abdul
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a county is planning to expand its train service. in studying the curre…
(a) Orange Line, Blue Line (b) 2 (c) Okene, Zama, Trento
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this data is from a sample. calculate the mean, standard deviation, and…
Sample Mean = $23.46$ Sample Standard Deviation = $13.58$ Sample Variance = $184.34$ Population Standard Deviation = $12.57$
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module test 8. which prefix would be added to the word part -stalsis to…
B. Peri-
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differences in departure times (minutes): - my air airlines: 26, 15, 40…
### Part a) My Air Airlines #### Mean ## Step1: Sum the data Data: \( 26, 15, 40, 0, 20, 33, 20, 5, 19, 34, 11, 33 \) Sum \( = 26 + 15 + 40 + 0 + 20 + 33 + 20 + 5 + 19 + 34 + 11 +…
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module test 8. which prefix would be added to the word part -stalsis to…
B. Peri -