Range and Interquartile Range Mean Median Range

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

• True

• False

When finding the median, what do you do if there are two middle numbers?

• Add them together and divide by 2

• Write them both as the answer

• Give up

• Pick one

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

• 2

• 5

• 7

• 4

The number of miles that Kiki cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Kiki cycled?

• 24

• 36

• 39

• 52

The cost of four cell phones are $345, $400, $110, and $640.
What is the median cost

• $330

• $390

• $372.50

• $375

Find the range of the data.

63, 71, 65, 66, 87, 53

• 32

• 33

• 34

• 35

What do quartiles split data up into?

• halves

• thirds

• fourths

• fifths

Find the interquartile range using the following.
Minimum:  1
Q1:  3
Median:  5
Q3:  7
Maximum:  9

• 8

• 4

• 5

• 10

Find the median, mode and range: 
3, 5, 7, 9, 11, 8, 3

• median:7  mode:3  range:8

• median:6  mode:3  range:7

• median:7  mode:3 range:8

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?

• 193

• 127

• 60

• 66