Quiz about Statistics Review

Question 1

What is the highest score in the class?

Accepted Answer

98%

Answer

88%

Answer

100%

Answer

13

Question 2

How many total students are in the science class?

Accepted Answer

27

Answer

13

Answer

6

Answer

25

Question 3

What is the range of the test scores?

Accepted Answer

10

Answer

15

Answer

100

Answer

6

Question 4

What is the MODE of this data?

Accepted Answer

90

Answer

85, 90, and 95

Answer

85 and 95

Answer

None

Question 5

What is the MEDIAN of this data?

Accepted Answer

65

Answer

40

Answer

915

Answer

13

Question 6

The mode is

Accepted Answer

The most frequent score

Answer

The middle score

Answer

Scores added & divided by the number of scores

Answer

The middle when in order

Question 7

The median is

Accepted Answer

The middle when in order

Answer

The middle score

Answer

Scores added & divided by the number of scores

Answer

The most frequent score

Question 8

Find the mean of these numbers:
5,11,2,12,4,2

Accepted Answer

6

Answer

4.1

Answer

4.5

Answer

4

Question 9

Identify the outlier for the given data?
23, 34, 27, 7, 30, 26, 28, 31, 34

Accepted Answer

7

Answer

23

Answer

31

Answer

34

Question 10

What shape is the data shown in the dot plot?

Accepted Answer

symmetrical

Answer

skewed left

Answer

skewed right

Question 11

Which statement correctly describes the shapes of the dot plots for cars and SUVs?

Accepted Answer

SUVs: skewed right

Cars: Skewed left

Answer

SUVs: symmetrical

Cars: skewed left

Answer

Both are skewed left

Answer

Both are symmetrical

Question 12

What is true about the histogram?

Accepted Answer

The tallest black cherry trees are between 85 and 90 feet in height. The data is not symmetrical. The range is 90 - 60 = 30 feet.

Answer

The heights of the trees are distributed symmetrically.

Answer

There is an outlier of 90 feet. The range is 10 - 0 = 10.

Answer

The tallest black cherry trees are between 75 and 80 feet in height and the data is symmetrical. The outlier is 60 feet.

Question 13

What is the median?

Accepted Answer

62

Answer

58

Answer

66

Answer

60

Question 14

What data value is the upper quartile (Q3)?

Accepted Answer

64

Answer

62

Answer

66

Answer

58

Question 15

What is the interquartile range (IQR)?

Accepted Answer

4

Answer

64

Answer

60

Answer

8

Question 16

Which box and whisker plot shows more "spread out" data?

Accepted Answer

Bottom plot

Answer

Top plot

Question 17

What percent of students have a height between 58 inches and 60 inches?

Accepted Answer

25%

Answer

50%

Answer

75%

Answer

100%

Question 18

What percent of students have heights between 60 inches and 66 inches?

Accepted Answer

75%

Answer

50%

Answer

100%

Answer

25%

Question 19

11. What percentage of the data is between 90 and 140?

Accepted Answer

50%

Answer

25 %

Answer

75%

Answer

100%

Question 20

Is the following question statistical or non statistical?
What pets does our class have?

Accepted Answer

Statistical

Answer

Non statistical

Question 21

Is the following question statistical or non statistical?

How many students like the color blue?

Accepted Answer

Non Statistical

Answer

Statistical

Question 22

Is the following question statistical or non statistical?
How tall are the students in our class?

Accepted Answer

Statistical

Answer

Non Statistical

Question 23

Is the following question statistical or non statistical?

How many students in our school prefer chocolate chip over oatmeal raisin?

Accepted Answer

Non Statistical

Answer

Statistical

Statistics Review

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