statistical an. exam 2
sarkha1
statisticsexam2.docx
Identify the class that has the greatest increase in 2.5 or better GPA’s over the five decades.
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Identify the utility that decreases as a percentage of the total utility bill from January to June.
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The data below represent the results of a poll in which the following questions was asked: "To what degree are you satisfied with your current health insurance?" Which pie chart below represents the given data set?
Very 14.5%
Somewhat 26.3%
Not at all 36.8%
No opinion 22.4%
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A.
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B.
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C. Both represent the data. |
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D. Neither represent the data. |
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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.
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A.
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B.
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C.
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D. None of the above |
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Identify the utility that has its smallest percentage of the total bill in March.
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Question 7 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?
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A.
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B.
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C.
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D. None of the above |
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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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The ages of employees of a company are summarized in the frequency table. Which line chart below represents the data?
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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?
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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.
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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Identify the class that had the lowest percentage increase in 2.5 or better GPA’s between the fourth and fifth decades.
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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?
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A. 2 |
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B. 5 |
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C. 11 |
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D. 18 |
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The following dot plot represents the ages of the people in a sample selected from a group of campaign volunteers.
How many people were in the sample?
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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.
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 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)?
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Identify the utility that accounts for over half the total bill in two months.
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Find the original data from the stem–and–leaf plot.
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Which line chart below represents the data in the table?
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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?
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