Five-Minute Check (over Lesson 7–3)

Main Idea and Vocabulary

Example 1:Make a Frequency Table

Example 2:Make and Interpret a Frequency Table

Example 3:Non-Numerical Data

• I will make and interpret frequency graphs.

• frequency table

Make a Frequency Table

Refer to the table. Make a frequency table of the data. Then describe the data.

Make a Frequency Table

Step 1 Make a table with three columns. Label the columns Number, Tally, and Frequency as shown.

Step 3 Describe the data.

Step 2 Use tally marks to record each data value. The last column provides acount, or frequency, of the data.

Make a Frequency Table

Answer: So, half of the data is less than or equal to 2 hours. More people watch TV for 2 hours than any other number.

• The mode is 2. More people watch TV for 2 hours than any other number.

• The range of the data is 5 – 0 or 5. There are no outliers.

• The median is 2 . Half of the data are above 2

and half of the data are below 2 .

1. A

2. B

3. C

4. D

0% 0%0%0%

Which of the choices best describes the data in the frequency table?A. More people’s favorite

color is black than any other color.

B. More than half the people chose red, green, and pink as their favorite color.

C. No one’s favorite color is purple.

D. Everyone chose pink as their favorite color.

Make and Interpret a Frequency Table

The table shows the number of hours students in Mr. Narayan’s class spent on homework last week. Make a frequency table. Find the median, mode, range, and any outliers. Then describe the data.

Make and Interpret a Frequency Table

The least number of hours spent on homework is 2, and the greatest number is 5. So, in the first column, write the numbers 2 to 5. Next, tally the data. Finally, add the tallies.

The median is the 8th number, or 4 hours. Half of the data are less than 4 hours and half are greater than or equal to 4 hours.

Make and Interpret a Frequency Table

The mode is 4 hours, since 4 appears more often than any other number.

The range is 5 – 2, or 3 hours. There are no outliers.

Make and Interpret a Frequency Table

Answer: So, the median is 4, the mode is 4, the range is 3, and there are no outliers. Half of the data are less than 4 hours and half are greater than or equal to 4 hours. More people study 4 hours than any other number of hours.

1. A

2. B

3. C

4. D0% 0%0%0%

What is the median, mode, range, and outliers (if any) of the data below?

A. median 2; mode 2; range 0; outlier 7

B. median 2; mode 5; range 0; outlier none

C. median 2; mode 7; range 7; outlier none

D. median 4; mode 7; range 5; outlier 7

Non-Numerical Data

The table shows student’s favorite kinds of movies. Make a frequency table of the data. Then use it to describe the mode.

Non-Numerical Data

Answer: Since more students chose comedy as their favorite movie than any other kind, the mode is comedy.

1. A

2. B

3. C

4. D

0% 0%0%0%

A. 3

B. 4

C. 5

D. 7

What is the mode of the data?

End of the Lesson

Five-Minute Check (over Lesson 7–3)

Image Bank

Math Tool Chest

Use an Appropriate Graph

(over Lesson 7–3)

Draw a line plot for the set of data.

1. A

2. B

3. C

4. D0% 0%0%0%

(over Lesson 7–3)

A.

B.

C.

D.

1. A

2. B

3. C

4. D

0% 0%0%0%

(over Lesson 7–3)

Find the median, mode, range, and any outliers of the data shown in the line plot.

A. median: 62, mode: 52, range: 13, outlier: 73

B. median: 54, mode: 63, range: 14, outlier: 68

C. median: 52, mode: 53, range: 21, outlier: 68

D. median: 67, mode: 53, range: 25, outlier: 48