Question

17. Find the variance for the following frequency distribution:
(P.U, 2011)
Class
5-15 ,15-25, 25-35,35-45, 45-55
Frequency
05,15,12,18,08​

Answer 1

Step-by-step explanation:

$\huge\tt\underline{\purple{S}\pink{O}\blue{L}\orange {U}\red{T}\green {I}\blue{O}}$$\huge\tt\underline{\purple{N}\pink{\:}\blue{\:}\orange {\:}\red{\:}\green {\:}\blue{\:}}$

689