Find the mean of the following data: x : 19 21 23 25 27 29 31 f : 13 15 16 18 16 15 13

Find the mean of the following data:

x:

19

21

23

25

27

29

31

f :

13

15

16

18

16

15

13

X	f	fx
19	13	247
21	15	315
23	16	368
25	18	450
27	16	432
29	15	435
31	13	403
	N = 106	∑fx = 2650

Therefore, Mean () =

=

= 25

2