Statistics Review

Classify this data set as CATEGORICAL OR NUMERICAL... the brand of shoes the students in your class are wearing

• Categorical

• Numerical

Find the MEAN (remember to add the numbers up and then divide by how many numbers there are)

22, 24, 25, 26, 30, 35

• 25

• 27

• 22

• 25.5

Find the MEDIAN of this set of numbers (*don't forget you need to FIRST put the numbers in order before you can find the median)

28, 45, 25, 32, 20, 39, 50

• 30

• 35,5

• 25

• 32

Find the range of the following sets of data (* Remember Range = Maximum – Minimum)

44, 50, 55, 56, 62, 68, 70

• 25

• 26

• 36

• 34

How many students have two cats or less?

• 25

• 4

• 7

• 15

What is the median number of cats that students have? (Remember...Write the values in order and then find the middle value.)

• 1

• 3.5

• 3

• 4

The histogram shows customers’ monthly cell phone bills. Use the graph to answer the question: How many people’s cell phone bills were between $36 and $44?

• 2

• 4

• 7

• 3

If a person’s cell phone bill came to $48, which interval should they be tallied in?

• 36-40

• 30-44

• 44-48

• 48-52

The histogram shows customers’ monthly cell phone bills. Use the graph to answer the question: How many people were included in this survey?

• 43

• 7

• 13

• 4

To find the average or mean of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of items