CMAS CMAS Data Interpretation and Analysis

Question 1

A bar graph shows that 120 students chose soccer and 80 students chose basketball as their favorite sport. How many more students chose soccer than basketball?

Accepted Answer

40

Answer

120 – 80 = 40, so 40 more students chose soccer than basketball.

Question 2

A line graph shows a steady increase in temperature from 60°F on Monday to 90°F on Friday. What is the average daily temperature increase?

Accepted Answer

7.5°F per day

Answer

The total increase is 90 – 60 = 30°F over 4 days (Mon to Fri), so 30 ÷ 4 = 7.5°F per day.

Question 3

In a pie chart, one sector represents 25% of the total. If the total is 200 students, how many students does that sector represent?

Accepted Answer

50

Answer

25% of 200 = 0.25 × 200 = 50 students.

Question 4

A stem-and-leaf plot shows the following data: stem 4 with leaves 2, 5, 8 and stem 5 with leaves 1, 3. What is the median of this data set?

Accepted Answer

48

Answer

The ordered data set is 42, 45, 48, 51, 53; the median (middle value) of 5 values is the 3rd value: 48.

Question 5

Which measure of central tendency is most affected by an extreme outlier in a data set?

Accepted Answer

Mean

Answer

The mean is calculated using all values, so a very large or small outlier will pull it significantly away from the center of the other data.

CMAS - Colorado Measures of Academic Success Practice Test

CMAS - Colorado Measures of Academic Success Practice Test

CMAS CMAS Data Interpretation and Analysis