Quiz about Summarizing Data Review

Question 1

Dr. David is a dentist. He needs to report on the average (Mean) number of cavities he found during exams today.

Here are the number of cavities his 7 patients had today:

1, 0, 1, 5, 0, 3, 4

What is the average number of cavities?

Accepted Answer

2

Answer

14

Answer

7

Answer

1

Question 2

How many students scored 93% or less?

Accepted Answer

16

Answer

6

Answer

14

Answer

13

Question 3

How many students are between 56 and 59 inches tall?

Accepted Answer

5

Answer

4

Answer

10

Answer

8

Question 4

How would you describe this distribution?

Accepted Answer

Symmetrical

Answer

Left skewed

Answer

Uniform

Answer

Right Skewed

Question 5

What is the spread in gas mileage for SUVs?

Accepted Answer

4

Answer

2

Answer

3

Answer

6

Question 6

Which statement best describes the data shown in the dot plot?

Accepted Answer

The peak of the data is at 35

Answer

The data are clustered from 30 to 32

Answer

The data distribution has gaps

Answer

The data distribution is symmetrical

Question 7

What is the MEDIAN of this data

Accepted Answer

95

Answer

90

Answer

100

Answer

40

Question 8

Which of the following is represented by the histogram?

Accepted Answer

Half the riders represented in the graph are between the ages 10-29.

Answer

Of the 20 riders represented in the graph, over 50% are 30 years of age or older.

Answer

One fourth of the riders represented in the graph are younger than 40 years old.

Answer

Six percent of the riders represented in the graph are between the ages 10 and 19.

Question 9

Which of the following dot plots can be used to create the histogram?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 10

What is the range of the data shown in the stem and leaf plot?

Accepted Answer

56

Answer

40

Answer

136

Answer

96

Question 11

In how many games did the team score more than 20 points?

Accepted Answer

7

Answer

8

Answer

10

Answer

9

Question 12

What is the Mode?

Accepted Answer

96.8

Answer

97.4

Answer

97.2

Answer

97

Question 13

What is the shape of the data?

Accepted Answer

skewed right

Answer

symmetrical

Answer

skewed left

Answer

bell curve

Question 14

What is the shape of the data?

Accepted Answer

skewed left

Answer

symmetrical

Answer

skewed right

Answer

bell curve

Question 15

Which is the correct box-and-whisker plot for the data set?
7, 13, 9, 15, 11, 7, 11

Accepted Answer

Box Plot 1

Answer

Box Plot 2

Answer

Box Plot 3

Answer

Box Plot 4

Question 16

Which data are represented by the stem-and-leaf plot below?

Accepted Answer

123, 126, 128, 132, 136, 139, 151, 152, 154

Answer

42, 72, 92, 33, 73, 103, 25, 35, 55

Answer

123, 126, 128, 130, 132, 136, 151, 154

Answer

30, 60, 80, 20, 60, 90, 10, 20, 10, 40

Question 17

Which statement is NOT true about the data provided?

Accepted Answer

The shapes of both data distributions are non-symmetrical.

Answer

Both sets of data have an IQR of 1.

Answer

Both measures of center for Raul's data have a value of 8.5.

Answer

The IQR of Bryan's data is best used to describe the spread because of the outlier.

Question 18

What is the relative frequency (to the nearest percent) of boys among those who cannot bike to school?

Accepted Answer

29%

Answer

4%

Answer

14%

Answer

13%

Summarizing Data Review

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