Question

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? Select one: a. 66 and 68 b. 64 and up to 67 c. 67 and up to 70 d. 67 and 69

Answer 1

Option C 67 upto 70

Explanation:

Given that heights of college women" recorded to the nearest inch: the first two class midpoints are 62.5" and 65.5".

This explains that each class width=Difference between mid values of successive classes
`65.5-62.5 = 3`

Also next class will have midvalue as
`65.5+3 = 68.5`

So next class has mid value as 68.5 and width as 3

i.e. 1.5 each side should be given

So class interval =
`(68.5-1.5, 68.5+1.5)\\=(67, 70)`

Option c