Question

100 surnames were randomly picked up from a local telephone directory and the frequency
distribution of the number of letters in the English alphabet in the surnames was obtained
as follows
Number of letters
1-4
4-7
7-10
10-13
13-16
16-19
Number of surnames
6
30
40
16
4
4
Determine the median number of letters in the surnames. Find the mean number of letters in the surn
ames? Also, find the modal size of the surnarnes.
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Answer 1

Answer:

Here

mean is 3

mode is 1 - 9

Answer 2

Hope it will help you with the question