Question

Consider the set of data 6, 3, -2, 11, -7, -9, 18, -30, 10, 13

Find the mean.
Find the mode.
Find the median.
Find the range.

Answer 1

mean= 1.3

mode= no mode

median= 4.5

range= 48

Explanation:

Mean= the average of the data

6+3+-2+11+-7+-9+18+-30+10+13 = 13

13/10= 1.3

Mode= most common number in data

there is no mode since no numbers are repeated

Median= the middle number of data

1- order data set

-30,-9,-7,-2,3,6,10,11,13,18

2- find the middle number

there are two middle numbers, 6 and 3

to find the middle of them add them and divide by two: 6+3/2 = 4.5

range= the greatest number - the smallest number of data

greatest numer=18

smallest number=-30

18--30 = 48