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# Statistical Reasoning for Everyday Life

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Exam 2
Question 1 of 20 5.0 Points
Identify the class that had the lowest percentage increase in 2.5 or better GPA's between the fourth and fifth decades.

A. Sr p86

B. Jr

C. So

D. Fr

Question 2 of 20 5.0 Points
Which line chart below represents the data in the table?

A.

B.

C.

D. None of the above
Question 3 of 20 5.0 Points
The histogram below shows the ages of the actors who won the Academy Award for best actor from 1970 to 2006.

How many of the award winners were 50 years old or older at the time they won their Oscar?

A. 6

B. 9

C. 15

D. 18
Question 4 of 20 5.0 Points
Identify the utility that has its smallest percentage of the total bill in March.

A. Gas

B. Electric

C. Water

D. None of the utilities has its smallest percentage of the total bill in March
Question 5 of 20 5.0 Points
The table shows the price of a volatile stock from the months January 1999 through December 1999 as determined by the closing price on the last trading day of the month. The price is rounded to the nearest dollar.

Which time series line chart represents the data?

A.

B.

C.

D. None of the above
Question 6 of 20 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.

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

A. Northeast

B. Midwest

C. South

D. West
Question 7 of 20 5.0 Points
Identify the class that has had the greatest percentage increase with respect to its initial percentage over the five decades.

A. Fr

B. So

C. Jr

D. Sr
Question 8 of 20 5.0 Points
The stacked bar chart below shows the percentages of death due to cancer in four geographic regions of the U.S. that occurred in three ethnic groups in 2003.

In which geographic area did Hispanics account for their highest percentage of cancer deaths in 2003?

A. Northeast

B. Midwest

C. South

D. West
Question 9 of 20 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.

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

A. 2

B. 5

C. 11

D. 18
Question 10 of 20 5.0 Points
Find the original data from the stem-and-leaf plot.

A. 95, 91, 99, 101, 111, 115

B. 91, 95, 91, 109, 119, 115

C. 95, 99, 101, 101, 115, 115

D. 95, 99, 101, 109, 115, 115
Question 11 of 20 5.0 Points
Identify the utility that accounts for over half the total bill in two months.

A. Water

B. Electric

C. Gas

D. No single utility accounts for more than half the total bill in two months
Question 12 of 20 5.0 Points
Alan tossed a die 50 times and obtained the results shown in the dot plot below.

How many times did he roll an even number?

A. 17

B. 19

C. 25

D. 21
Question 13 of 20 5.0 Points
The time series line chart below shows the prices of a volatile stock from January 1999 to December 1999. Between which two consecutive months did the price of the stock drop by the greatest percentage?

A. June - July

B. August - September

C. May - June

D. None of the above
Question 14 of 20 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.

List all of the original weights.

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

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

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

D. 29,31,32,36,37,37,38,38,40,42,43,43,45,45,46,47,51,52,54,60
Question 15 of 20 5.0 Points
Identify the class that has the greatest increase in 2.5 or better GPA's over the five decades.

A. Sr

B. Jr

C. So

D. Fr
Question 16 of 20 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.

How many values are there less than 40?

A. 6

B. 8

C. 9

D. 5
Question 17 of 20 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.

How many bottles were sampled?

A. 9

B. 10

C. 15

D. 44
Question 18 of 20 5.0 Points
The table shows the end-of-the-month checking account balance of a statistics teacher for the months January 1999 through December 1999 as determined by the closing balance on the last banking day of the month. The balance is rounded to the nearest dollar.

A.

B.

C.

D. None of the above
Question 19 of 20 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?

A.

B.

C.

D. None of the above
Question 20 of 20 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 stem-and-leaf diagram below. The leaf unit is 0.1.

How many bottles had exactly 16 fluid ounces (to the nearest 0.1 ounce)?

A. 0

B. 6

C. 11

D. 25

#### Solution Preview

1A
From 79% to 85%

2C
Use the midpoints of the quiz scores

3B
4 + 1 + 3 + 1 = 9

4C
In the third bar, black is the shortest within that bar.

5B
The table and chart both start from Jan and end in Dec

6C
The blue graph has a peak at South. ...

#### Solution Summary

Statistical reasoning for everyday life is examined. All solutions have been provided.

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