Revision

8, 11, 14, 23, 32 , 39

Q2=

• 32

• 18.5

8, 11, 14, 23, 32 , 39

Q1=

• 14

• 11

8, 11, 14, 23, 32 , 39

Q3=

• 32

• 23

When finding the median, what is the FIRST step?

• Mark off the lowest number

• Mark off the highest number

• Find the Middle

• Arrange the number from Least to Greatest

First step for finding the median is to order the numbers from least to greatest?

• True

• False

Quartiles break the data set into _____ equal parts each representing 25% of the data.

• 1

• 2

• 3

• 4

Q2 is the same as the ______

• Mean

• Median

• Mode

• Range

The IQR is a measure of __________________ .

• center

• spread

• quartiles

• range

Find Q1, Q2, and Q3

Data: 19, 5, 2, 8, 32, 47, 21

• Q1 = 6.5, Q2 = 8, Q3 = 31

• Q1 = 5, Q2 = 8, Q3 = 47

• Q1 = 5, Q2 = 19, Q3 = 32

• Q1 = 7.5, Q2 = 18, Q3 = 32

Find the Quartile 1 of the following data set:

2, 3, 4, 5, 5, 5, 7,

• 4

• 6

• 3

• 5