Question

pls answer if you know only​

Answer 1

Given,

mode=52

total frequency (n)= 20

We know,

7+8+x+2+y=20

17+x+y=20

x+y=3

x=3-y eqn i

now,

we know the mode class is 5-7 (i think the class should be 50-70 but still I'll give you the idea on how to do it)

here l=5, f1=x, f0=8, f2=2, h=2

here,

mode=l+(f1-f0)/(2f1-f0-f2)×h

or, 52=5+(x-8)/(2x-8-2)×2

or, 52=5+(x-8)/(2x-10)×2

or, 94x-470=2x-16

or, 92x=454

x=4.93

from eqn i

x=3-y

4.93=3-y

y=-1.93

The ans maynot be correct but this is the process of solving that kind of question. However i think the question is incorrect