Free Printable Chapter 13 Review

1.

Identify the sampling technique used to obtain a sample.

The first 30 people to arrive at a town meeting are surveyed to find out their opinion on a proposed bond referendum.

a)

Convenience sampling

b)

Stratified sampling

c)

Cluster sampling

d)

Systematic sampling

2.

Identify the sampling technique used to obtain a sample.

A group of people are classified according to height and then random samples of people from each group are

taken.

a)

Convenience sampling

b)

Stratified sampling

c)

Cluster sampling

d)

Systematic sampling

3.

a)

18

b)

17.5

c)

20.5

d)

19.5

4.

Use the following frequency distribution to determine the modal class (or classes).

a)

24-28

b)

9-13; 19-23; 24-28; 34-38

c)

14-18

d)

24-28; 34-38

5.

Use the data to construct a frequency distribution.

a)

A

b)

B

c)

C

d)

D

6.

Construct a stem and leaf display for given data.

a)

A

b)

B

c)

C

d)

D

7.

Construct a stem and leaf display for given data.

a)

A

b)

B

c)

C

d)

D

8.

Use the data to construct a frequency distribution.

a)

A

b)

B

c)

C

d)

D

9.

What were the total number of calls in the survey?

a)

19

b)

21

c)

7

d)

15

10.

How many calls were on hold for 5 minutes or less?

a)

19

b)

16

c)

15

d)

17

11.

What is the modal class?

a)

23 and 24 years

b)

26 years

c)

18 years

d)

20 years

12.

Find the mean of the set of data. Round your answer to the nearest tenth.

95, 43, 52, 52, 43, 95, 5, 5, 5, 95, 5, 5, 52

a)

42.5

b)

45.6

c)

42.1

d)

41.7

13.

Find the median of the set of data.

34, 23, 5, 5, 28, 13, 22, 32, 32, 32

a)

28

b)

22

c)

25

d)

23

14.

Find the median of the set of data.

62, 32, 211, 122, 266, 236, 234

a)

211

b)

122

c)

234

d)

166

15.

Find the range for the set of data given.

0.133 0.114 0.452 0.428 0.579 0.31

a)

0.452

b)

0.114

c)

0.465

d)

0.177

16.

Find the range for the set of data given.

115 459 132 641 409 298

a)

166

b)

115

c)

526

d)

459

17.

Find the midrange of the set of data.

230, 221, 211, 211, 211, 211, 221, 216, 216, 216, 221, 221

a)

220.5

b)

9.5

c)

537

d)

217.2

18.

Find the mode or modes for the set of numbers.

104, 141, 156, 104, 188, 199, 162

a)

141

b)

104

c)

156

d)

85

19.

Find the mode or modes for the set of numbers.

87, 71, 32, 71, 29, 87

a)

87, 71

b)

87

c)

62.83

d)

71

20.

Find the standard deviation. Round to one more place than the data.

112, 298, 189, 265, 121, 169, 201, 176, 182

a)

23.8

b)

60.2

c)

56.7

d)

64.3

21.

Find the standard deviation. Round to one more place than the data.

3, 4, 10, 11, 11, 13, 13, 15, 20

a)

5.6

b)

5.2

c)

4.9

d)

1.4

22.

In his chemistry lab, Harrison measured the mass of a sample of calcium carbonate six different times. The mass measurements he observed were: 2.016 g, 2.009 g, 2.017 g, 2.011 g, 2.012 g, and 2.011 g. Find the midrange of these measurements.

a)

2.0115 g

b)

2.01 g

c)

2.013 g

d)

2.015 g

23.

To get a C in history, Nandan must average 74 on four tests. Scores on the first three tests were 65, 75, and 63. What is the lowest score that Nandan can get on the last test and still receive a C?

a)

19

b)

68

c)

69

d)

93

24.

Jackie's sisters weigh 110 lb, 142 lb, 123 lb, and 126 lb. The average female in her city weighs 132.1 lb. How much does Jackie weigh if she and her sisters have an average weight of 132.1 lb?

a)

125.3lb

b)

159.5 lb

c)

269.5 lb

d)

126.6 lb

25.

The following scores on the midterm exam in a math class were recorded.

93 81 59 69 82 75 61 77 95 84 88 71

85 97 63 72 89 80 60 98 91 62 78 83

76 81 94 66 83 96

Find the 1st quartile, Q1.

a)

70.5

b)

70

c)

71

d)

69.5

26.

The following scores on the midterm exam in a math class were recorded.

93 81 59 69 82 74 61 77 95 84 88 71

86 97 63 72 89 80 60 98 91 62 78 83

76 81 94 66 83 96

Find the 3rd quartile, Q3.

a)

76

b)

89

c)

88

d)

86

27.

Use a z-Table to find the specified area.

To the left of z = -0.47

a)

0.6808

b)

0.9871

c)

0.3446

d)

0.3192

28.

Use a z-Table to find the specified area.

To the right of z = 0.59

a)

0.2190

b)

0.2224

c)

0.2776

d)

0.7224

29.

Use a z-Table to determine the percent of data specified. Round to the nearest hundredth.

Between z = -1.68 and z = 1.68

a)

90.75%

b)

0.91%

c)

90.70%

d)

95.36%

30.

Use a z-Table to determine the percent of data specified. Round to the nearest hundredth.

Greater than z = -0.07

a)

47.21%

b)

75.80%

c)

52.79%

d)

24.20%

31.

A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time.

Round to the nearest hundredth, if necessary.

At least 500 hours

a)

50%

b)

48%

c)

20%

d)

100%

32.

A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time.

Round to the nearest hundredth, if necessary.

Between 500 hours and 675 hours

a)

45.99%

b)

96.99%

c)

94.95%

d)

45.12%

33.

A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time.

Round to the nearest hundredth, if necessary.

Less than 320 hours

a)

21.19%

b)

3.59%

c)

96.41%

d)

78.81%

34.

Which of the following is represented by the histogram?

a)

Of the 20 riders represented in the graph, over 50% are 30 years of age or older.

b)

One fourth of the riders represented in the graph are younger than 40 years old.

c)

Half the riders represented in the graph are between the ages 10-29.

d)

Six percent of the riders represented in the graph are between the ages 10 and 19.

35.

How many trees are between 150 and 300 cm in height?

a)

60

b)

89

c)

107

36.

A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50. If an applicant is randomly selected, find the percentage of applicants with a rating that is between 170 and 220.

a)

38.11%

b)

15.54%

c)

7.03%

d)

22.57%

37.

Assume that the mean length of a human pregnancy is 268 days with a standard deviation of 9 days. What percentage of human pregnancies do we expect to last no more than 260 days?

a)

18.67%

b)

29.67%

c)

31.30%

d)

20.41%

38.

The average middle-distance runner at a local high school runs the mile in 4.5 minutes, with a standard deviation of 0.3 minute. Find the percentage of a runners that will run the mile in less than 4 minutes?

a)

45.22%

b)

15.87%

c)

4.75%

d)

7.15%

39.

Find the range and the standard deviation of the following prices of notebook computers: $1189, $1349, $1450, $1398, $1175, $1229.

a)

Range = $116.17; standard deviation = $275

b)

B) Range = $250; standard deviation = $118.38

c)

Range = $275; standard deviation = $116.17

d)

Range = $275; standard deviation = $137.50

40.

Find the range and the standard deviation of the following golf scores: 74, 70, 70, 66, 68, 69, 69.

a)

Range = 8; standard deviation = 1.9

b)

Range = 8; standard deviation = 2.4

c)

Range = 8; standard deviation = 8

d)

Range = 6; standard deviation = 2.3

41.

The incomes of trainees at a local mill are normally distributed with a mean of $1,100 and a standard deviation $150. What percentage of trainees earn less than $900 a month?

a)

9.18%

b)

90.82%

c)

35.31%

d)

40.82%

42.

Find the standard deviation. Round to one more place than the data.

15, 5, 15, 9, 17, 20, 10, 8, 7

a)

5.1

b)

4.8

c)

1.5

d)

5.5

43.

Find the standard deviation. Round to one more place than the data.

18, 13, 11, 17, 15, 20, 7, 8, 18

a)

5.0

b)

4.4

c)

1.8

d)

4.6

44.

Find the standard deviation. Round to one more place than the data.

15, 5, 15, 9, 17, 20, 10, 8, 7

a)

5.6

b)

1.5

c)

5.3

d)

5.1

45.

Find the standard deviation. Round to one more place than the data.

9, 5, 11, 6, 11, 11, 7, 17, 15, 17

a)

4.3

b)

1.2

c)

3.8

d)

4.0

46.

A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time.

Less than 690 hours

a)

97.2%

b)

97.06%

c)

97.1%

d)

47.14%

47.

A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time.

At least 500 hours

a)

20%

b)

50%

c)

48%

d)

100%

48.

A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time.

Between 290 hours and 500 hours

a)

58.22%

b)

58.26%

c)

48.26%

d)

48.2%

49.

Use a z-Table to find the specified area.

Between the mean and 3.01 deviations from the mean.

a)

0.4987

b)

0.4980

c)

0.5011

d)

0.9985

50.

Use a z-Table to determine the percent of data specified.

Greater than z = 0.59

a)

27.76%

b)

72.24%

c)

22.24%

d)

25.47%

51.

Use a z-Table to determine the percent of data specified.

Between z = 1.41 and z = 2.83.

a)

7.80%

b)

7.85%

c)

7.79%

d)

7.70%

52.

Use a z-Table to determine the percent of data specified.

Between z = -2.49 and z = 1.19.

a)

11.15%

b)

86.86%

c)

87.66%

d)

11.32%

Chapter 13 Review

Total questions: 52

Worksheet time: 3hrs 33mins

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