Question

how to solve q 7 of maths statistics​

Answer 1

Answer:

95

1. Make three columns

• 1-Age (in years ).2-No of person. 3-l.c.f.

Median=24

N=55+x

suppose the missing frequency is x

N÷2=55+x÷2

Median=L+h÷f (N÷2-c.f) 24 =10+10÷25 (55+x÷2-5)

24=10+10÷25 (55+x-10÷2)

24-10=10÷25 (45+x÷2)

14=10÷25 (45+x÷2)

14×25=10(45+z÷2)

320=225+x

x=320-225

x=95