Math, asked by kevalmahavadi, 1 month ago

8. The mean of first three terms is 14 and mean of next two terins is 18. The mean of all five terms is @ 14 (d) none of these (b) 15.6 (a) 14.5 (a) O (b) 0 O (C) (d)​

Answers

Answered by apeksha9322
0

mean of first three terms ;

x/3 = 14

x = 14×3

x = 42

mean of next two terms ;

x/2 = 18

x = 18×2

x = 36

total sum of observations = 42+36

total no. of observations = 3+2

mean = 78/5

= 15.6

this is ur required answer

Similar questions