CBEST CBEST - California Basic Educational Skills Math: Data Interpretation and Statistics 1

Question 1

A bar graph shows test scores for 5 students: 72, 85, 90, 68, and 95. What is the median score?

Accepted Answer

85

Answer

Arranging scores in order (68, 72, 85, 90, 95), the middle value is 85.

Question 2

A pie chart shows that 40% of a school's 300 students prefer math. How many students prefer math?

Accepted Answer

120

Answer

40% of 300 = 0.40 × 300 = 120 students.

Question 3

The mean of five numbers is 14. Four of the numbers are 10, 12, 16, and 18. What is the fifth number?

Accepted Answer

14

Answer

Sum = 14 × 5 = 70; 70 − (10+12+16+18) = 70 − 56 = 14.

Question 4

A line graph shows rainfall (inches) for January through April: 3, 5, 4, 6. What is the average monthly rainfall?

Accepted Answer

4.5

Answer

(3+5+4+6) ÷ 4 = 18 ÷ 4 = 4.5 inches.

Question 5

In a frequency table, the mode of a data set refers to which value?

Accepted Answer

The value that appears most often

Answer

The mode is the value that occurs with the greatest frequency in a data set.

CBEST - California Basic Educational Skills Test Practice Test