Question

1)
The frequencies of 13, 15, 19. 17 are 1, 2 1 4 respectively then arithmetic mean
A)168
B)1.68
C)168
DIS
A​

Answer 1

Answer:

Mean = 16.8

Step-by-step explanation:

X. F. fx

13. 1. 13

15. 2. 30

19. 3. 57

17. 4. 68

N=10 €fX=168

Mean = €fX/N

Mean = 168/10 = 16.8 Ans.