Mean Median Mode Iqr

Calculate the interquartile range of the following data:
17, 18, 18, 19, 20, 21, 21, 23, 25

• 3

• 4

• 5

• 8

Find the median.
12, 5, 9, 18, 22, 25, 5

• 9

• 8

• 12

• 18

In order to find the median, the data must be sorted from least to greatest first.

• True

• False

Find the mean of these numbers:
5, 11, 2, 12, 4, 2

• 4.1

• 6

• 36

• 4

The first thing we do when we find the median is...

• add and divide

• nothing

• subtract each number

• order from least to greatest

What is the median?

• The end of a sentence

• The middle of the road

• The middle of the set of numbers

• My lunch

Find the median of these numbers:
4, 2, 7, 4, 3

• 2

• 5

• 7

• 4

Find the mode of:
1, 2, 3, 4 

• 2.5

• 2 & 3

• No mode

• 4

The dot plot below shows the height of the students’ lettuce plant starts. The measurements are in centimeters.

What is the mean height of the plants?

• 1.25 cm

• 1.50 cm

• 2.0 cm

• 2.25 cm

A package delivery driver logged his mileage for two weeks. The table below shows his data for ten days. Find the interquartile range of the mileage data.

• 50 mi

• 39 mi

• 73 mi

• 42 mi