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Ch 9 Statistics - TEST - mod

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Last updated over 4 years ago
20 questions
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Question 1
1.

Find the median of the data set below.

3, 8, 10, 1, 25

Question 2
2.

Over 11 consecutive days, Jim did the following number of pushups:

7, 8, 10, 10, 12, 14, 15, 17, 17, 19, 33

Find the range of the data.

Question 3
3.

The cost of 10 different portable MP3 players is shown in the table. What is the mean cost?


Question 4
4.

Use the table of test grades to find the Maximum, Minimum, First Quartile, Third Quartile and Interquartile Range. Note: There are three values in the list of choices that are not used for these Measures of Spread.


Draggable itemarrow_right_altCorresponding Item
Unused
arrow_right_alt
0
Minimum
arrow_right_alt
90
Unused
arrow_right_alt
63
Third Quartile
arrow_right_alt
85
First Quartile
arrow_right_alt
22
Unused
arrow_right_alt
68
Interquartile Range
arrow_right_alt
83
Maximum
arrow_right_alt
74
Question 5
5.

Which statement about the data represented by the percent bar graph is NOT true?

Question 6
6.

Use the dot plot to find the mode.

Question 7
7.

The graph shows the preferences of exercise classes. What is the relative frequency for yoga? Round your answer to the nearest tenth of a percent.


Question 8
8.

Which set of data has an outlier?

Question 9
9.

Which statement about the data presented by the box plot is NOT true?


Question 10
10.

The circle graph shows how Tremaine divided his time. Tremaine used the computer a total of 30 hours last week. How many more hours did Tremaine use the computer for social media than for games?


Question 11
11.

Use the box plot to determine which statement is NOT true?


Question 12
12.

The graph shows the favorite colors chosen by some middle school students.



Which statement is supported by the information in the graph?

Question 13
13.

A survey found that 5 out of 6 people in a community visit a dentist on a regular basis. If there are 4,320 people in the community, what is a reasonable prediction for the number of people who would visit a dentist on a regular basis?

Question 14
14.

A survey found that 6 out of 8 students own a pet. If there are 320 students is a school, what is a reasonable prediction for the number of students who own a pet?

Question 15
15.

Mrs. Smith, the school nurse, randomly selects seventh graders to participate in a district survey about the heights and weights of students. They survey results for the heights of seventh-grade boys and girls are shown in the box plots below.

Which statement is best supported by the information in the box plots?

Question 16
16.

A survey in one middle school showed that 3 out of 5 students enjoy biking on the weekends. Predict how many out of the 485 students in the school would say they enjoy biking on the weekends.

Question 17
17.

The bar graph shows the number of vacant rooms at a hotel over a five-day span. How many more rooms were vacant on Thursday and Friday than on Monday and Tuesday?


Question 18
18.

Which statement best describes the shape of the data distribution for the girls’ heights compared to the shape of the data distribution for the boys’ heights?

Question 19
19.

Which of the following graphs is symmetric?

Question 20
20.

To determine what apartment renters want, the manager randomly surveyed eight renters in each of the six buildings in the complex. Out of 48 renters, 64% said they would like more hallway lights. How many renters said they would like more hallway lights?