Question

Following distribution shows no. of wickets taken by bowlers in one - day cricket matches. Find
the mean no. of wickets using step- deviation method. Also, round off your answer to the nearest
integer.

Answer 1

Step-by-step explanation:

For grouped data when Class Intervals given, we find the Class Mark.

Class Mark=

mid point of an interval =

(Lower limit+Upper limit)

___________________

2

Class Mark is taken as Ｘｉ

For each class interval .Find Xifi

From the table ,we calculate

Mean= ∑fixi. 6880

_____ =______

∑fi. 45

=152.8888889=152.89(roundingoffto100

th

place)

Onanaveragethenumberofwicketstakenbyabowleris152.89.

solution