AnswersEA Academy Algebra IUnit Test

Comparing Movements for Civil Rights Answers

25 verified answers
1
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The number of text messages that Reza sent each day so far in this billing cycle is shown on the dot plot.

Question illustration
A
The data is symmetric and shows that he typically sent about 6 to 8 text messages per day.
B
The data is symmetric and shows that he sent 11 or 12 texts with the same frequency that he sent 1 or 2 texts.
C
The data is skewed and shows that he typically sent about 6 to 8 text messages per day.
D
The data is skewed and shows that he sent 11 or 12 texts with the same frequency that he sent 1 or 2 texts.
2
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The box plots compare the exam scores of Ms. Dobson’s class to the rest of the students who took the test in the district.Which statement is true about the box plots? Select three options.Ms. Dobson’s class has a smaller range of scores.The district has a greater interquartile range.Fifteen is an outlier for the district’s scores.One hundred is an outlier for the district’s scores.In general, the district’s scores were better than those of Ms. Dobson’s class.

Question illustration
A
Ms. Dobson’s class has a smaller range of scores.
B
The district has a greater interquartile range.
C
Fifteen is an outlier for the district’s scores.
D
One hundred is an outlier for the district’s scores.
E
In general, the district’s scores were better than those of Ms. Dobson’s class.
3

Justin packed two suitcases for his trip and compared the weights of the items he packed in each of the suitcases.Which statement is true about the box plots?

Question illustration
A
The data for suitcase 1 have an outlier, but the data for suitcase 2 does not.
B
The data for suitcase 2 have a greater median than the data for suitcase 1.
C
The data for suitcase 1 has a greater interquartile range than the data for suitcase 2.
D
The data for suitcase 2 has a greater range than the data for suitcase 1.
4

Nico wanted to determine the number of students in his school who buy school lunch. He walked around the cafeteria one lunch period looking to see whether every fifth person in the cafeteria purchased lunch or brought their own.

A
survey
B
simulation
C
experiment
D
observational study
5

The data set represents the total number of tickets each person purchased for a play.0, 0, 1, 1, 1, 2, 2, 2, 4, 4What is the median of the data?

A
1
B
1.5
C
2
D
2.5
6

Kira looked through online census information to determine the average number of people living in the homes in her city. What is true about Kira’s data collection?

A
Kira used an observational study where the data is qualitative.
B
Kira used an observational study where the data is quantitative.
C
Kira used published data that is qualitative.
D
Kira used published data that is quantitative.
7

Alejandro wants to determine the average shoe size of all of the male students in his school. Which sample is likely to yield the most biased results?

A
every tenth boy on the school’s phone list
B
every member of the boys’ basketball team
C
every boy in a randomly selected ninth-, tenth-, eleventh-, and twelfth-grade gym class
D
every fifth boy who walks through the front doors of the school in the morning
8

The data set represents the total number of people who bought bananas each hour at a grocery store.1, 1, 5, 5, 7, 8, 8, 10, 12Which box plot correctly represents the data?

A
A number line goes from 0 to 16. The whiskers range from 1 to 12, and the box ranges from 3 to 9. A line divides the box at 7.
Option A
B
A number line goes from 0 to 16. The whiskers range from 1 to 12, and the box ranges from 5 to 9. A line divides the box at 7.
Option B
C
A number line goes from 0 to 16. The whiskers range from 1 to 12, and the box ranges from 5 to 8. A line divides the box at 7.
Option C
D
A number line goes from 0 to 16. The whiskers range from 1 to 12, and the box ranges from 3 to 8. A line divides the box at 7.
Option D
9

Which statement is true about the ranges for the box plots?

Question illustration
A
The range of the Morning box plot is the same as the range of the Afternoon box plot.
B
The range of the Morning box plot is 1 less than the range of the Afternoon box plot.
C
The range of the Morning box plot is 1 more than the range of the Afternoon box plot.
D
The range of the Morning box plot is 2 less than the range of the Afternoon box plot
10

The ages of the people in attendance at the showing of an award-winning foreign film are shown below.

Question illustration
A
The data is symmetrical, showing that the majority of the attendees were between the ages of 30 and 50.
B
The data is symmetrical, showing that the majority of the attendees were between the ages of 21 and 60.
C
The data is skewed, showing that the majority of the attendees were between the ages of 30 and 50.
D
The data is skewed, showing that the majority of the attendees were between the ages of 21 and 60.
11

Gustavo is in a contest where he will win one of four possible prizes. He creates a four-part spinner to represent the four prizes that he has an equal chance of winning: a video game system, a bicycle, a watch, and a gift card. He spins the spinner several times to demonstrate the likelihood of winning a certain prize.

A
Gustavo used an experiment where the data is qualitative.
B
Gustavo used an experiment where the data is quantitative.
C
Gustavo used a simulation where the data is qualitative.
D
Gustavo used a simulation where the data is quantitative.
12

Irina’s basketball team has a 1 in 6 chance of winning the first-place trophy. She rolled a six-sided number cube repeatedly, assigning her team a number from 1 to 6 to demonstrate the probability that her team would win.

s
survey
s
simulation
e
experiment
o
observational study
13

The data set represents the total number of tuba players in each of 11 different school bands.0, 1, 3, 3, 4, 4, 4, 5, 6, 6, 8What is the lower quartile of the data?

A
1
B
3
C
4
D
6
14

The data set below has a lower quartile of 13 and an upper quartile of 37.1, 12, 13, 15, 18, 20, 35, 37, 40, 78Which statement is true about any outliers of the data set?

A
The data set does not have any outliers.
B
The lowest value, 1, is the only outlier.
C
The greatest value, 78, is the only outlier.
D
Both 1 and 78 are outliers.
15

The data set represents the number of miles Mary jogged each day for the past nine days.6, 7, 5, 0, 6, 12, 8, 6, 9What is the outlier of the data?

A
0
B
6
C
7
D
12
16

The number of points that Shira scored each basketball game so far this season is shown on the dot plot.

Question illustration
A
The data is skewed to the right and shows that she never scored fewer than 2 points or more than 12 points in a game.
B
The data is skewed to the right and shows that she scored 11 points in more games than all of the other games combined.
C
The data is skewed to the left and shows that she never scored fewer than 2 points or more than 12 points in a game.
D
The data is skewed to the left and shows that she scored 11 points in more games than all of the other games combined.
17

A variety of two types of snack packs are delivered to a store. The box plots compare the number of calories in each snack pack of crackers to the number of calories in each snack pack of trail mix.Which statement is true about the box plots?

Question illustration
A
The interquartile range of the trail mix data is greater than the range of the cracker data.
B
The value 70 is an outlier in the trail mix data.
C
The upper quartile of the trail mix data is equal to the maximum value of the cracker data.
D
The number of calories in the packs of trail mix have a greater variation than the number of calories in the packs of crackers.
18

The box plot represents the number of minutes customers spend on hold when calling a company.What is the upper quartile of the data?

Question illustration
A
3
B
5
C
6
D
8
19

The box plot compares the number of events that Mrs. Cai’s and Mr. Roland’s classes won over the last 10 years on the school’s field day.Based on the data in the box plots, what is the best evidence to show which class has had greater success on field day over the last 10 years?

Question illustration
A
Mrs. Cai’s class was more successful because her interquartile range was less spread out.
B
Mrs. Cai’s class was more successful because she had the greater total spread.
C
Mr. Roland’s class was more successful because his class always won at least one event.
D
Mr. Roland’s class was more successful because his class’s lower quartile was the same as Mrs. Cai’s class’s upper quartile.
20

The interquartile range of the data set is 4.2, 2, 3, 3, 4, 5, 5, 6, 7, 9, 12Which explains whether or not 12 is an outlier?

A
Twelve is an outlier because it is greater than the sum of 7 and 4.
B
Twelve is an outlier because it is less than the sum of 7 and 6.
C
Twelve is not an outlier because it is greater than the sum of 7 and 4.
D
Twelve is not an outlier because it is less than the sum of 7 and 6.

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