PSSA PSSA Data Analysis and Statistics

Question 1

A class recorded the following test scores: 72, 85, 90, 68, 85, 91, 85. What is the mode of this data set?

Accepted Answer

85

Answer

The mode is 85 because it appears more times (3 times) than any other value in the data set.

Question 2

A bar graph shows that 12 students prefer soccer, 8 prefer basketball, and 5 prefer baseball. How many students were surveyed in total?

Accepted Answer

25

Answer

Adding all values together: 12 + 8 + 5 = 25 students total.

Question 3

The temperatures for a week were: 55, 60, 58, 62, 65, 63, 61. What is the median temperature?

Accepted Answer

62

Answer

When arranged in order (55, 58, 60, 61, 62, 63, 65), the middle value (4th of 7) is 62.

Question 4

A spinner has 8 equal sections: 3 red, 2 blue, 2 green, and 1 yellow. What is the probability of spinning blue?

Accepted Answer

1/4

Answer

There are 2 blue sections out of 8 total, so the probability is 2/8 = 1/4.

Question 5

Which type of graph is BEST for showing how a quantity changes over time?

Accepted Answer

Line graph

Answer

A line graph is best for showing change over time because it clearly displays trends and patterns across a continuous period.

PSSA - Pennsylvania System of School Assessment Practice Test