6th Grade Math Textbook, Progress

CHAPTER 9

Practice 9-1

Practice 9-2

527

Use the double line graph for problems 1–3.

1.Find the

temperature

at the summit

at 7 A.M.

2.Estimate the

difference in

temperatures

at 9 A.M.

3.Between what

hours did the temperatures change least?

Use the given data

for problems 4–6.

4.Organize the data

in a frequency table.

5.Use the data to make:

a. a line plot

b.a stem-and-leaf plot

0 6. Find the mode, range, and median of the data

in problem 4.

0 7. In 5 games, Jan scored 15, 18, 20, 12, and 20

points. What is her mean score?

0 8. Ali’s scores on her first four math tests were

98, 84, 88, and 92. What score must she make

on the fifth test to have the mean of the five

tests equal 90?

0 9. The table shows

how many

people saw the

circus. Make a

double bar

graph to display

the data.

10.High temperature readings during one 5-day

period were 72, 63, 70, 68, and 77 degrees

Fahrenheit. Give the range, median, mean,

and mode for this set of data.

Use the given data for ex. 9–11.

9.What are the extremes of the data?

10.What is the median of the data? the upper and

lower quartiles?

11.Make a box-and-whisker plot for this data.

12.Make a frequency table and a histogram for

this data.

40 ° F

50 ° F

60 ° F

70 ° F

80 ° F

7 AM 9 AM11 AM1 PM3 PM

Hour

Temperatures

Degrees

Key:

Summit

Base Camp

Ages of Guests

at a Party

19 48 67 11 45

29 11 44 11 36

28 12 10 39 11

35 12 18 40 11

Attendance

Days Matinee Evening

Sun. 350 450

Mon. 100 150

Tue. 125 250

Wed. 300 350

Write whether you would be most likely to find a

biased sample for the survey at each location.

Write Yesor No. Explain.

1. Favorite music: concert hall


2. Favorite food: Chinese restaurant


3. Favorite TV show: shopping mall


4. Favorite sport: park
   Use the circle graph for problems 5–8.


5. Which sport is
   most popular?


6. What fractional part
   of the members prefer
   soccer or softball?


7. There are 96
   members in the
   Sports Club. How many prefer softball?


8. Of the 96 members, which sport is preferred by
   exactly 12 members?

1

3

1

6

3

8

1

8

Sports Club Membership

Softball Tennis

Volleyball Soccer

Student Math Grades

75 80 90 79 82

93 79 88 95 88

Number of Pets per Class in

Parker Elementary

735 10 12

4 68613

9 4735

11 8 5 9 10

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