Question

of a locality by a group of students As a result of the survey conducted on 20families, the following figures were obtained regarding the number of members of different families Find the polymer of these
Family size
1-3
3-5
5-7
7-9
9-11
Number of families 7 8 2 2 1
​

Answer 1

Answer:

3.3

Step-by-step explanation:

Family size     number of Families

1-3                   7

3-5                   8

5-7                   2

7-9                   2

9-11                   1

Max frequency is 8 of group 3-5

Estimated mode =  3  +  2 * (8 - 7)/((8 - 7) + (8-2))

= 3 + 2 * 1/7

= 3 + 2/7

= 3.3