MATHEMATICS

Question 8 of 20 0.0/ 5.0 Points

Identify the utility that has its smallest percentage of the total bill in March.

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A. Gas

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B. Electric

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C. Water

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D. None of the utilities has its smallest percentage of the total bill in March

Question 9 of 20 0.0/ 5.0 Points

The data below are the numbers of hours of homework done as reported by 24 high school juniors for the last week in September, 2006. 6, 5, 6, 4, 6, 6, 9, 7, 6, 3, 8, 5, 5, 8, 6, 5, 8, 6, 5, 7, 5, 8, 7, 4 Using bins of 2 hours width, which relative frequency histogram represents the data?

 

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A.

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B.

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C.

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D. None of the above

Question 10 of 20 0.0/ 5.0 Points

The stem-and-leaf plot below shows the weights in pounds of halibut caught on an Alaskan fishing boat for one day.

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List all of the original weights.

 

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A. 29, 31, 36, 37, 38, 40, 42, 43, 46, 47, 51, 52, 54, 60

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B. 29, 31, 32, 36, 37, 38, 38, 40, 42, 43, 46, 47, 51, 54, 60

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C. 29, 31, 32, 36, 37, 38, 40, 42, 43, 45, 46, 47, 51, 52, 54, 60

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D. 29,31,32,36,37,37,38,38,40,42,43,43,45,45,46,47,51,52,54,60

Question 11 of 20 0.0/ 5.0 Points

The following multiple line graph shows the numbers of death due to cancer in four geographic regions of the U.S. that occurred in three ethnic groups in 2003.

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In which geographic area was the number of cancer deaths among whites the highest in 2003?

 

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A. Northeast

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B. Midwest

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C. South

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D. West

Question 12 of 20 0.0/ 5.0 Points

The stem–and–leaf diagram below shows the highest wind velocity ever recorded in 30 different U.S. cities. The velocities are given in miles per hour. The leaf unit is 1.0.

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How many of the maximum wind velocities are 88 miles per hour or lower?

 

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A. 2

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B. 5

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C. 11

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D. 18

Question 13 of 20 0.0/ 5.0 Points

The ages of employees of a company are summarized in the frequency table. Which line chart below represents the data?

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A.

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B.

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C.

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D.

None of the above

Question 14 of 20 0.0/ 5.0 Points

A nurse measured the blood pressure of each person who visited her clinic. Following is a relative–frequency histogram for the systolic blood pressure readings for those people aged between 25 and 40. Use the histogram to answer the question. The blood pressure readings were rounded down to the next whole number.

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Given that 600 people were aged between 25 and 40, approximately how many had a systolic blood pressure reading recorded as between 120 and 149 inclusive?

 

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A. 48%

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B. 250

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C. 288

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D. 300

Question 15 of 20 0.0/ 5.0 Points

A nurse measured the blood pressure of each person who visited her clinic. Following is a relative-frequency histogram for the systolic blood pressure readings for those people aged between 25 and 40. Use the histogram to answer the question. The blood pressure readings were rounded up to the next whole number.

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Approximately what percentage of the people aged 25–40 had a systolic blood pressure reading greater than or equal to 130?

 

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A. 15%

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B. 28%

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C. 75%

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D. 90%

Question 16 of 20 0.0/ 5.0 Points

A machine is supposed to fill juice bottles with 16 fluid ounces of juice. The manufacturer picks a sample of bottles that have been filled by the machine and determines the volume of juice in each bottle. The results are shown in the following stem–and–leaf diagram. The leaf unit is 0.1.

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How many bottles were sampled?

 

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A. 9

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B. 10

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C. 15

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D. 44

Question 17 of 20 0.0/ 5.0 Points

Identify the class that has had the greatest percentage increase with respect to its initial percentage over the five decades.

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A. Fr

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B. So

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C. Jr

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D. Sr

Question 18 of 20 0.0/ 5.0 Points

The following dot plot represents the ages of the people in a sample selected from a group of campaign volunteers.

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How many people were in the sample?

 

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A. 15

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B. 21

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C. 27

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D. 28

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