Quiz about Unit 1 Statistics Review

Question 1

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below:
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

Accepted Answer

9

Answer

5

Answer

6

Answer

11

Question 2

What is the mode?

Accepted Answer

The value that occurs the most often in a data set

Answer

The middle number in an ordered set of data

Answer

The sum of all the numbers in a data set divided by the size

Answer

The sum of the between the greatest and the least elements, divided by two

Question 3

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is Roger's median score?

Accepted Answer

155

Answer

127

Answer

156

Answer

193

Question 4

Find the range.
12, 5, 9, 18, 22, 25, 5

Accepted Answer

20

Answer

15

Answer

22

Answer

18

Question 5

What is the upper quartile value?

Accepted Answer

70

Answer

20

Answer

30

Answer

65

Answer

95

Question 6

What is the lower quartile value?

Accepted Answer

30

Answer

20

Answer

65

Answer

70

Answer

95

Question 7

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

Accepted Answer

25%

Answer

50%

Answer

75%

Answer

100%

Question 8

What is the median of the data?

Accepted Answer

105

Answer

106

Answer

104

Answer

110

Question 9

How many people did 33 or more pushups?

Accepted Answer

8

Answer

6

Answer

5

Answer

2

Question 10

Which interval has 400 employees?

Accepted Answer

33-43

Answer

0-10

Answer

77-87

Answer

66-76

Question 11

How many employees have a salary less than $22,000?

Accepted Answer

350

Answer

50

Answer

0

Answer

10

Question 12

Which interval has the greatest number of students?

Accepted Answer

Answer

Answer

Answer

Question 13

What type of relationship does this scatter plot show?

Accepted Answer

Negative

Answer

Positive

Answer

No Relationship

Answer

Constant

Question 14

Which statement best represents this relationship?

Accepted Answer

As the number of miles driven increases, the amount of gas remaining in the tank decreases.

Answer

There is no relationship between the number of miles driven and the amount of gas remaining in the tank

Answer

As the number of miles driven increases, the amount of gas remaining in the tank increases.

Answer

A relationship cannot be determined from this scatter plot

Question 15

Which statement best describes the relationship shown in this scatter plot?

Accepted Answer

A student's shoe size has no effect on their math score

Answer

Students with a bigger shoe size earn a higher math score

Answer

Students with a smaller show size earn a higher math score

Answer

A student with a shoe size of 8 will always earn a score of 80%

Question 16

Based on the scatter plot, which statement best describes the correlation (trend)?

Accepted Answer

As the daily temperature increases, the number of beach visitors increases.

Answer

as the daily temperature decreases, the number of beach visitors increases.

Answer

As the daily temperature increases, there is no change in the number of beach visitors

Answer

As the daily temperature increases, the number of beach visitors decreases

Question 17

Which data will most likely show a negative correlation when graphed on a scatter plot?

Accepted Answer

The outside temperature and the number of people wearing gloves.

Answer

The distance a student lives from school and the amount of time it takes to get to school.

Answer

The number of visitors at an amusement part and the length of the lines for the rides.

Answer

A student's height and grade point average.

Question 18

Find the mean of the number of hours spent doing homework.

Accepted Answer

6.95

Answer

8

Answer

7

Answer

69.5

Question 19

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

Accepted Answer

7

Answer

8

Answer

10

Answer

9

Question 20

Find the Mode?

Accepted Answer

96.8

Answer

968

Answer

97.2

Answer

972

Question 21

How does the median number of miles driven for Driver A compare to the median number of miles driven for Driver B?

Accepted Answer

Driver A drives much less than Driver B when comparing medians.

Answer

Driver B drives much less than Driver A when comparing medians.

Answer

The medians are the same

Answer

Driver A and Driver B make the same amount of money.

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