Rise Placement Test Statistics and Data Analysis

Question 1

A student scored 72, 85, 90, 68, and 95 on five tests. What is the mean score?

Accepted Answer

82

Answer

85

Answer

80

Answer

78

Question 2

What is the median of the data set: 3, 7, 9, 2, 5, 8, 1?

Accepted Answer

5

Answer

7

Answer

9

Answer

3

Question 3

In the data set {4, 7, 4, 9, 2, 7, 4, 1}, which value is the mode?

Accepted Answer

4

Answer

7

Answer

2

Answer

9

Question 4

What is the range of the following data set: 15, 3, 27, 11, 8?

Accepted Answer

24

Answer

15

Answer

19

Answer

27

Question 5

A bar chart shows that 40 students prefer math, 30 prefer English, and 20 prefer science. What percentage of students prefer English?

Accepted Answer

33.3%

Answer

30%

Answer

25%

Answer

40%

Question 6

A bag contains 5 red marbles and 3 blue marbles. What is the probability of randomly selecting a red marble?

Accepted Answer

5/8

Answer

3/8

Answer

5/3

Answer

1/2

Question 7

The following table shows monthly sales: Jan=200, Feb=250, Mar=300. Which month had the greatest increase over the previous month?

Accepted Answer

February, with an increase of 50

Answer

March, with an increase of 50

Answer

March, with an increase of 100

Answer

February, with an increase of 100