Answer:
mean = 14.5 ; median = 15.5 ; interquartile = 7.5
Explanation:
Given : 17,23,8,5,9,16,22,11,13,15,17,18.
To find : Find the mean median and interquartile for the data set .
Solution : We have given 17,23,8,5,9,16,22,11,13,15,17,18.
First we arrange in ascending order 5 , 8 ,9 ,11, 13, 15, 16 , 17, 17,18, 22, 23,
Mean :
.
Mean :
.
Mean : 14.5
Median : Average of middle two numbers
Median :
.
Median :
.
Median : 15 .5
Interquartile : median of lower half - median of upper half.
Interquartile :
-
.
Interquartile : 17.5 - 10= 7.5
Therefore, mean = 14.5 ; median = 15.5 ; interquartile = 7.5