Quiz about Unit 6 Stats - 6.2 Lesson Check

Question 1

Describe the shape of the graph

Accepted Answer

Unimodal and Symmetric

Answer

Unimodal and Right Skewed

Answer

Bimodal and Symmetric

Answer

Unimodal and Left Skewed

Question 2

Which interval contained the fewest scores?

Accepted Answer

both 0-9 and 50-59

Answer

0-9

Answer

50-59

Answer

10-19

Question 3

How many students are represented by the histogram?

Accepted Answer

31

Answer

Cannot be determined

Answer

9

Answer

35

Question 4

The histogram displays the number of hours of TV watched last week? How would you describe the shape of his distribution?

Accepted Answer

Unimodal and skewed right

Answer

Unimodal and skewed left

Answer

Unimodal and symmetric

Question 5

What is the range of the data?

Accepted Answer

70

Answer

80

Answer

10

Answer

40

Answer

30

Question 6

A group of students and teachers were surveyed on how many sodas they drink in a day. Based on the results shown in the boxplots, 50% of ___________ drink more than 5 sodas a day.

Accepted Answer

Children

Answer

Adults

Answer

cannot be determined

Question 7

What percent of students read between 280 and 340 words per minute (wpm)?

Accepted Answer

75%

Answer

100%

Answer

25%

Answer

50%

Question 8

What interval size was used when creating this histogram?

Accepted Answer

11

Answer

5

Answer

10

Answer

9

Question 9

How would you describe the shape of this histogram?

Accepted Answer

relatively symmetric

Answer

skewed right

Answer

skewed left

Answer

uniform

Question 10

A group of students and teachers were surveyed on how many sodas they drink in a day. Based on the results shown in the boxplots, ____________% of adults drink between 3 and 4 sodas a day.

Accepted Answer

25%

Answer

50%

Answer

20%

Answer

75%

Question 11

What is the upper extreme?

Accepted Answer

98%

Answer

88%

Answer

100%

Answer

13

Question 12

What is the mode?

Accepted Answer

89%

Answer

88%

Answer

97%

Answer

91%

Question 13

What is the interquartile range?

Accepted Answer

4 inches

Answer

6 inches

Answer

2 inches

Answer

8 inches

Question 14

What is the range in gas mileage for SUVs?

Accepted Answer

4 mpg

Answer

2 mpg

Answer

3 mpg

Answer

6 mpg

Question 15

What is the average gas mileage for the cars that were documented in this data set?

Accepted Answer

24.4 mpg

Answer

19.8 mpg

Answer

26 mpg

Answer

19 mpg

Question 16

Question 16.

Accepted Answer

The sophomores averaged 1 more coat collected than the freshmen

Answer

The freshmen averaged 1 more coat collected than the sophomores.

Answer

The freshmen averaged the same number of coats collected as the sophomores.

Answer

The sophomores averaged 3 more coats collected than the freshmen.

Question 17

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 18

Which statement is true about the center of distribution?

Accepted Answer

The center is best described using the median, because the distribution is skewed.

Answer

The center is best described using the mean, because the distribution is skewed.

Answer

The center is best described by the mean and median, because the distribution is symmetric.

Answer

The center is best described by the outlier, because the distribution is symmetric.

Question 19

Compare the centers and spreads.

Accepted Answer

Math has a higher median (center) and is less consistent (wider spread).

Answer

Math has a higher median (center) and is more consistent (smaller spread).

Answer

Math has a lower median (center) and is more consistent (smaller spread).

Answer

Math has a lower median (center) and is less consistent (wider spread).

Question 20

Which of the following statements is true?

Accepted Answer

The median shoes sold by Caleb was 2 pairs more than Tim.

Answer

The median shoes sold by Tim was 13 pairs.

Answer

The median shoes sold by Caleb was the same as the median sold by Tim.

Answer

There is not enough information to compare the shoe sales for Caleb and Tim.

Unit 6 Stats - 6.2 Lesson Check

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