Unit 2: Data Analysis

Statistical Questions

100

True or False:  The question, "What were the quiz scores of the last three periods?", is a statistical question.

True

200

Give the definition of a statistical question.

A question that investigates some part of the real-world and has a variety of responses.

300

True or False:  Yes/No questions are not considered statistical questions.

False

400

Pick out ALL of the statistical questions in the following set of questions:

1)  What are all of the months that begin with a J?

2)  Who is the King of England?

3)  When is the next Olympics?

4)  Who has competed in the 100m race in the last 8 Olympic games?

5) Buckeye Nation, will you watch the game Saturday?

Questions 1, 4, and 5

500

 

Write a statistical question for the following dot plot.

Answers may vary.

Mean, Median, Mode, and Range

100

Find the median, mode, and range of the following set of data:

8, 5, 3, 6, 2, 4, 6

Median-5

Mode-6

Range-6

200

Find the mean of the following set of data:

8, 5, 3, 6, 2, 4, 6, 12

5.75

300

The number of hours Nancy worked this week for the past 5 days is 8, 6, 5, 9, 8.
What is Nancy's average amount of hours worked?

7.2 hours

400

Find the mean, median, mode, and range of the following set of data:

1.6, 1.4, 1.2, 1.9, 0.9

Mean-1.4

Median-1.4

Mode-No mode

Range-1

500

The mean of the following data set is 25.

26, 28, 20, 27, 26, ?

What is the missing number in the data set?

23

MAD

100

What is the first step you need to do in order to find the mean absolute deviation?

Find the mean.

200

The mean of the following set of data is 16.

19, 14, 16, 18, 13

What is the sum of the distances that each number in the data set is away from the mean?

10

300

If you have a data set of 8 numbers and the sum of the distances each number in that data set is away from the mean is 14, what is the MAD?

1.75

400

Find the MAD for the following set of data:

25, 23, 20, 29, 23

2.4

500

Find the MAD of the following set of data:

0.8, 0.7, 0.9, 0.6, 1.3, 0.5

0.2

Dot Plots and Box Plots

100

Describe the dot plot.

Symmetric

Peaks at 31 and 32

Cluster from 26 to 35

Gap from 22 to 25

Outlier at 21

200

What numbers fall in the 25-75% on the box plot?

27 to 33

300

Name the minimum, maximum, Q1, Q2, and Q3 for the following set of data:

17, 19, 13, 14, 14, 18, 15, 11, 11, 18, 22

Minimum-11

Maximum-22

Q1-13

Q2-15

Q3-18

400

What is the average of the quartile 1 values?

9

500

What is the median for this dot plot?

4.5

Frequency Tables and Histograms

100

What are the interval lengths (bin widths)?

0.06

200

How many heights are between 1.40M and 1.63M?

78

300

Make a histogram for the frequency table.

Show answer on whiteboard.

400

What is the difference in heights of 1.51M or shorter compared to 1.52M and taller?

10

500

Make a frequency table for the above histogram.

Show answer on whiteboard.