PAPA PAPA Data Interpretation & Statistics

Question 1

A bar graph shows scores of 70, 80, 85, 90, and 75. What is the mean score?

Accepted Answer

80

Answer

The mean is (70+80+85+90+75)÷5 = 400÷5 = 80.

Question 2

In a data set, the value that appears most frequently is called the:

Accepted Answer

Mode

Answer

The mode is the value that occurs most often in a data set.

Question 3

A pie chart shows that 40% of students prefer math. If there are 200 students, how many prefer math?

Accepted Answer

80

Answer

40% of 200 = 0.40 × 200 = 80 students.

Question 4

The range of the data set {4, 7, 13, 2, 9} is:

Accepted Answer

11

Answer

Range = maximum − minimum = 13 − 2 = 11.

Question 5

Which type of graph is best suited for showing changes in data over time?

Accepted Answer

Line graph

Answer

Line graphs are ideal for displaying trends and changes in data over a continuous period of time.

(PAPA) Pre-service Academic Performance Assessment Practice Test