Refer to the following information from a frequency distribution for "heights of college women" recorded to the nearest inch: The first two class midpoints are 62.5" and 65.5".
What are the class limits for the third class?
A) 64 and up to 67
B) 67 and 69
C) 67 and up to 70
D) 66 and 68

Question

Quizplus · Accepted Answer

Since the first two class midpoints are 62.5" and 65.5", and assuming equal class widths, the third class midpoint should be 68.5". To find the class limits for this class, we need to subtract and add half of the class width to the midpoint, which is (68.5 - 0.5) and (68.5 + 0.5), respectively. This gives us the class limits of 67 and 70 inches, which makes choice C the correct answer.

Refer to the Following Information from a Frequency Distribution for "Heights