Question

find median 0-20 20-40 40-60 60-80 80-100 100-120 fi 6, 11,21,23,14,5​

Answer 1

Answer :

7.73

Step-by-step explanation:

CF : 6 17 38 61 75 80

.•. n= 80,

n/2 = 40

so, 60-80 is the median class

l=60,

cf=38,

f=23,

h=20,

median = l+ (n/2-cf/f) h

by substituting in the values in the equation we get,

60+(40-38/23)20

=60+40/23

=138/23 + 40/23

=178/40

=7.73