Data and Statistics Test Review

Test Review
Data and Statistics

02.

Statistical vs. Non-Statistical Questions

Statistical questions
show variability (can
have multiple answers).

Non-statistical
questions only have one
answer.

01. What are statistical

questions?

What are
non-statistical
questions?

Multiple Choice

How many days are in May?

• Statistical Question

• Non-Statistical Question

Multiple Choice

How many people have been the principal at Fulmer Middle School?

• Statistical Question

• Non-Statistical Question

Multiple Choice

What is the grade of each student in this math class?

• Statistical Question

• Non-Statistical Question

How do we find the measure of center?

Mean

Step 1: Add the

numbers in the data

set together

Step 2: Divide by the

number of data
points in the set

Median

Step 1: Organize the
data set from least

to greatest

Step 2: Identify the

number in the middle

Mode

Find the

number(s) that

occur the most in

the data set.

Multiple Choice

What is the mean of this set of data: 23, 14, 13, 15, 10, 8, 9, 11, 15, 12, 13?

• 13
• 16
• 14
• 10

Multiple Choice

What is the median of this set of data: 23, 14, 13, 15, 10, 8, 9, 11, 15, 12, 13?

• 13
• 16
• 14
• 10

Multiple Choice

What is the mode of this set of data: 23, 14, 13, 15, 10, 8, 9, 11, 15, 12, 13?

• 13

• 15

• 13, 15

• 14, 15

Multiple Choice

What would happen if 11 was deleted from this data set?

3, 1, 3, 5, 10, 8, 9, 11, 5, 2

• The mean would increase

• The mean would decrease

• The mean would stay the same

• The mean would not be affected

Range = Max - Min

IQR = Q3 - Q1

Range and IQR

Fill in the Blank

What is the range of this data set?

13, 2, 12, 7, 11, 15, 4

Fill in the Blank

What is the IQR of this data set?

13, 2, 12, 7, 11, 15, 4

Data Displays

Match

Match the following types of data displays:

Dot Plot

Histogram

Box Plot

• Dot Plot

• Histogram

• Box Plot

Multiple Choice

What is the median of this box plot?

• 2

• 5

• 6

• 7

Multiple Choice

What is the IQR of this box plot?

• 2

• 5

• 6

• 7

Multiple Choice

What is the sample size of this histogram?

• 10

• 11

• 12

• 9

Multiple Choice

How many parks have admission less than $22?

• 10

• 11

• 12

• 15

Multiple Choice

What is the sample size of this data?

• 30

• 40

• 50

• 60

Multiple Choice

Which measure would be the most appropriate to answer a question about the data's spread?

• Mean

• Median

• Range

• Mode

Multiple Choice

Which measure would be the most appropriate to determine the average number of hours of exercise?

• Mean

• Median

• Range

• Mode

Multiple Choice

Describe the shape of this data.

• Left Skewed

• Right Skewed

• Symmetrical

Multiple Choice

Describe the shape of this data.

• Left Skewed

• Right Skewed

• Symmetrical

Multiple Choice

Describe the shape of this data.

• Left Skewed

• Right Skewed

• Symmetrical