mean,median and mode

Question

Find the mean, median, and mode(s) of the data set.

8, 15, 5, 2, 17, 10, 13, 11

Answer 1

8, 15, 5, 2, 17, 10, 13, 11

1)mean:

The mean is usual average

=(8+ 15+ 5+ 2+17+ 10+ 13+ 11)/8  

=81/8  

=10.125

 2) median

The median is the middle number.

The numbers are already listed in numerical order, so I don\'t have to rewrite the list.

But there is no \"middle\" number, because there are an even number of numbers.

In this case, the median is the mean (the usual average) of the middle two values:

8, 15, 5, 2, 17, 10, 13, 11

The middle numbers 2,17

= ( 2 + 17 ) ÷ 2 

= 19/2

=9.5

3)mode

The mode is the number that is repeated most often , but all the numbers in this list appear only once, so there is no mode.

mean=10.125

median=9.5  

mode=none.