Question

Use the following data to determine each statistical measure. 9,9,14,7,12,8,11,19,15,11

Find the answer for the. mean, median, range, mode, IQR, and MAD

Answer 1

To find the mean add up all the numbers and divide by how many numbers there are:

(9+9+14+7+12+8+11+19+15+11)/10

mean= 11.5

To find the median you have to arrange to least to greatest order and cross out all of the numbers left to right until you get the median :

7,8,9,9,11,11,12,14, 15,19

Median= 11 (Middle number/value)

To get the range, you have to find the difference between the highest to the lowest value :

range= 12

Mode (how often a number repeats) :

Mode= 11

IQR(Difference between the highest value (Q3) and lowest value (Q1) :

14-9= 5

Hope this helps.