Question

Hellalgie.
23) Find the mean for the following frequency distribution:
xi
3
6
10
12
7
15
fi
3
4
2
8
13
10​

Answer 1

Answer:

jkxkyxmmfkyfulkfhsgdlilfgnshmxjgjgkyfrhjfzurds

Answer 2

X F xf

3 3 9

6 4 24

10 2 20

12 8 96

7 13 91

15 10 150

total (f)= 40,total (xf)=390

mean = xf/f

=390/40=9.75