A distribution of 50 scores with 5 intervals has a class interval of ______.
A)50
B)25
C)10
D)5

Question

Quizplus · Accepted Answer

To find the class interval, we need to divide the range of the data by the number of intervals. Since we know there are 5 intervals and 50 scores, we can calculate the range of the data as 50 - 1 = 49.

Then, the class interval is:

49 / 5 = 9.8

Since we want to have whole numbers for the class interval, we can round up to the nearest whole number, which gives us a class interval of 10. Therefore, the answer is C.

A Distribution of 50 Scores with 5 Intervals Has a Class