Math, asked by namratakarade96, 3 months ago

The standard deviation for the table is Class 0-6 6-
12 12-18 18-24 24-30 Frequency 8 10 15 11 6​

Answers

Answered by foziatabasumpersonal
1

Answer:

Step-by-step explanation:

xi=3,9,15,21,27

f=8,10,12,9,5

cf=8,18,30,39,44

N=∑fi=44

N2=22

medianclass=12→18

l=12,F=18,f=12,h=6

median=l+n2−Ff⋅h=12+22−1812⋅6=14

now, again in table

di=|xi−14|=1,5,1,7,13

fi⋅di=88,50,12,63,65

∑(fi⋅di)=278

mean deviation about median is∑(fi⋅di)N

27844=6.318

Similar questions