Question

Calculate the mean:-
Xi 10 12 20 25 35
Fi 3 10 15 7 5

Answer 1

Step-by-step explanation:

Hope you will understand

Answer 2

xi Fi xifi

10 3 30

12 10 120

20 15 300

25 7 175

35 5 175

_____

800/2

ANSWER IS 400