Answer:
The number of students who have a test score in the interval 71-80 is 13.
Step-by-step explanation:
Given:
The frequency chart which show the cumulative numbers of students test scores.
Now, to find the number of students who score in the interval 71-80, we will look in the frequency chart. In the chart score range of 65-80 the cumulative number of students are 13. As the 71 to 80 comes in between the score range 65-80 and there are 13 students who scored in this range.
Therefore, the number of students who have a test score in the interval 71-80 is 13.
