Question

find the median of first 20 odd numbers

Answer 1

Answer:

Step-by-step explanation:first 20 narural numbers are 1,2,3,4,........20.

Median = sum of data / no. Of data

=1+2+3+..... ...+20/20

=210/20

= 21/2

Median = 10.5

Answer 2

by direct method
odd no are
1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39.
so, sum of all no/total no of outcomes
1+3+5+7+9+11+13+15+17+19+21+23+25+27+29+31+33+35+37+39/20
so 400/20=20=mean
median=n/2, n+1/2

20/2+21/2
so median = 21.5