SC READY Data Analysis, Statistics & Probability

Question 1

A class recorded the number of books read by each student in a month: 2, 5, 3, 7, 5, 4, 5. What is the mode of this data set?

Accepted Answer

5

Answer

4

Answer

3

Answer

7

Question 2

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

Accepted Answer

82

Answer

80

Answer

85

Answer

78

Question 3

A bag contains 4 red marbles, 3 blue marbles, and 3 green marbles. What is the probability of randomly selecting a blue marble?

Accepted Answer

3/10

Answer

3/7

Answer

3/4

Answer

1/3

Question 4

The daily high temperatures for one week were: 78, 82, 75, 90, 82, 79, 85. What is the range of these temperatures?

Accepted Answer

15

Answer

10

Answer

12

Answer

7

Question 5

A line graph shows a store's sales rising from January through June, then dropping sharply in July. What does this pattern most likely indicate?

Accepted Answer

Sales peaked in June and then declined

Answer

Sales are consistently growing throughout the year

Answer

The store closed in July

Answer

Data was not recorded in July

Question 6

Students surveyed their classmates about favorite sports. The results were: Soccer 12, Basketball 8, Baseball 5, Swimming 5. What fraction of students chose Soccer?

Accepted Answer

2/5

Answer

2/3

Answer

4/10

Answer

2/6

Question 7

A spinner has 8 equal sections numbered 1 through 8. What is the probability of landing on an even number?

Accepted Answer

1/2

Answer

1/4

Answer

3/8

Answer

5/8