Question

Find the missing frequencies in the following frequency distribution if the mean is 50.25 and the total no of students in the class is 80.

Answer 1

Where are the distribution .??

Well , to find :-

• Firstly we find fixi

• then the total of f ( frequency ) which will be equal to the given total of f

• By using the formula for mean i.e,

mean = total of fixi / total of fi

• Two equation will be formed.

Solve them !!

$hope \: this \: helps \: uh$