67.4k views
2 votes
5.2 pts. Given the following data: {3, 7, 8, 2, 4, 11, 7, 5, 9, 6),What is the IRQ?

1 Answer

3 votes

Step 1 : arrange the 10 terms in ascending order :

{2, 3,4,5,6,7,7,8,9,11}

step 2: find the median ( this is the middle term in the arranged data set I will high light the medians )

(6+7)/2 = 13/2 = 6.5.

Step 3 : find the median in the lower half of the data set {2,3,4,5,6...} which is 4.

Step 4: find the median in the upper half of the data set {...7,7,8,9,11}

which is 8.

Now lets find our iter quartile range :

The IRQ /IQR is the difference between the first quartile (4) and the third quartile (8)= 8-4 =4

IQR = 4

User Souperman
by
6.8k points