Interquartile range of 62, 63, 63, 70, 73, 70, 79, 83, 84, 90,91

20.5

Step-by-step explanation:

21

Step-by-step explanation:

1. Sort your numbers

Sorted = 62, 63, 63, 70, 70, 73, 79, 83, 84, 90, 91

2. Calculate Q2

Q2= median = middle number of set

You have eleven numbers in the set, so the median is the sixth number.

Q2 = 73

3. Calculate Q1

Q1 = median of all numbers below Q1.

You have five numbers in the set, so the median is the third number.

Q1 = 63

4. Calculate Q3

Q3 = median of all numbers above Q1.

You have five numbers in the set, so the median is the third number above Q2.

5. Calculate IQR

IQR = Q3 - Q1 = 84 - 63 = 21

The interquartile range is 21.

answer is c

step-by-step explanation:

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.