Question

if the mean of the following data is 14.7 find the pnq class (0-6)(6 -12)(12- 18)(18- 24)( 24 -30)( 30- 36 )(36- 42) frequency ( 10)( P)( 47 )(Q)( 4)(1) find (p) and (q)

Answer 1

Answer:

1. sum of fixi is 854+9p+24q
2. sum of fi is 62+p+q
3. mean = sum of fixi /sum of fi
4. by putting the value it gives
5. 14.7= 854+9p+24q/62+p+q
6. 911.4+14.7p+14.7q=854+9p+24q

by solving this we will get the answer