Question

Statistics help

A histogram with 5 intervals is plotted for a normally distributed data set. Which statement is correct?

1 The third interval has the same frequency as the fifth interval.
No the third interval has the highest frequency of all of them

2 The frequency of the second interval is greater than that of the fourth interval.
The second and third interval are both the same frequency so not this question.

3 The frequency of the fourth interval is less than that of the third interval.
true

4 The frequency of the first interval is less than that of the fourth interval.
true

I don't know which to choose 3 or 4 because wouldn't both be correct?

Answer 1

First lets draw an example of a histogram with 5 intervals that is a normally distributed data set.

Answer 2

wouldn't that just be a bell shaped curve?

Answer 3

yes we can approximate it with a bell curve