Question

find the mean of the following frequency distributions :- ×,2,5,7,8/f ,2,4,6,3​

Answer 1

Answer:

6

Step-by-step explanation:

mean = sigma xifi/ sigma fi

sigma xifi = 2*2+5*4+7*6+8*3

= 4+20+42+24

= 90

sigma fi = 15

mean= 90/15

= 6