Question

Find mean, median and mode of the following data:

7, 4, 3, 5, 6, 3, 3, 2, 4, 3, 4, 3, 3, 4, 4, 3, 2, 2, 4, 3, 5, 4, 3, 4, 3, 4, 3, 1, 2, 3.
​

Answer 1

      :

︎︎︎︎= 16

︎︎︎︎︎︎=3.64

︎︎︎︎=3.5

             :

︎︎︎︎.....

total fi =30

total xi =16

total fixi =480

total fixi /total fi

=480/30

=16

︎︎︎︎︎︎.....

modal class =2-4

l =2

h =2

f1 =16

f0 =1

f2 =11

Median = l+(f1-f0/2f1-f0-f2)×h

=2+(16-1 /32-1-11)×2

=2+15÷20 ×2

=2+3/2

=(4+3)/2

=7/2

=3.5

︎︎︎︎︎︎......

median class =2-4

l =2

n =30,n/2 =15

cf = 1

f =17

h =2

median = l+(n/2-cf÷f)×h

= 2+(15-1/17)×2

= 2+14/17×2

= 2+28/17

= 3.64

ᕼOᑭᗴ TᕼIՏ ᗯIᒪᒪ ᕼᗴᒪᑭ YOᑌ .........