Question

How f=2? Plz give correct answer

Answer 1

Answer:

f=2,c.f.=14

Step-by-step explanation:

when we calculated the (n/2)th term

we get median lies in 15th term

15th term lies in modal class of 15-20

in modal class 15-20 the frequency (f) is 2 ,c.f value is 16

for calculating we have to take the value of c.f. of preceding value of c.f. modal class

so, c.f.=14

then f=2,c.f=14