e SAT Scores Gender Less up to 25 25 and more Female 375 636 667

E sat scores gender less up to 25 25 and more female

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e. SAT Scores Gender Less than 20 20 up to 25 25 and more Female 37.5% 63.6% 66.7% Male 62.5% 36.4% 33.3% Total 100% 100% 100%
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PTS: 1 TOP: Descriptive Statistics 14.For the following observations, plot a scatter diagram and indicate what kind of relationship (if any) exist between x and y.xy2761939517411 PTS: 1 TOP: Descriptive Statistics 15.For the following observations, plot a scatter diagram and indicate what kind of relationship (if any) exist between x and y.xy845539212114
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PTS: 1 TOP: Descriptive Statistics 16.Five hundred recent graduates indicated their majors as follows.MajorFrequencyAccounting60Finance100Economics40Management120Marketing80Engineering60Computer Science40Total500a.Construct a relative frequency distribution.b.Construct a percent frequency distribution. ANS: a. b. Relative Percent Major Frequency Frequency Frequency Accounting 60 0.12 12 Finance 100 0.20 20 Economics 40 0.08 8 Management 120 0.24 24 Marketing 80 0.16 16 Engineering 60 0.12 12 Computer Science 40 0.08 8 Total 500 1.00 100 PTS: 1 TOP: Descriptive Statistics 17.A sample of the ages of 10 employees of a company is shown below.
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20304030503020302040Construct a dot plot for the above data. ANS: 10 20 30 40 50 60 PTS: 1 TOP: Descriptive Statistics 18.The following data set shows the number of hours of sick leave that some of the employees of Bastien's, Inc. have taken during the first quarter of the year (rounded to the nearest hour).192227242812234711552542362534164549122028292110593948324031a.Develop a frequency distribution for the above data. (Let the width of your classes be 10 units and start your first class as 10 - 19.)b.Develop a relative frequency distribution and a percent frequency distribution for the data.c.Develop a cumulative frequency distribution.d.How many employees have taken less than 40 hours of sick leave? ANS: a. b. b. c. Hours of Relative Percent Cum. Sick Leave Taken Freq. Freq. Freq. Freq. 10 - 19 6 0.20 20 6 20 - 29 11 0.37 37 17 30 - 39 5 0.16 16 22 40 - 49 6 0.20 20 28 50 - 59 2 0.07 7 30 d. 22 PTS: 1 TOP: Descriptive Statistics 19.The sales record of a real estate company for the month of May shows the following house prices (rounded to the nearest $1,000). Values are in thousands of dollars.105554585753060757995a.Develop a frequency distribution and a percent frequency distribution for the house prices. (Use 5 classes and have your first class be 20 - 39.)
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b.Develop a cumulative frequency and a cumulative percent frequency distribution for the above data.c.What percentage of the houses sold at a price below $80,000? ANS: a. a. b. b. Cum. Sales Price Percent Cum. Percent (In Thousands of Dollars) Freq. Freq. Freq. Freq. 20 - 39 1 10 1 10 40 - 59 2 20 3 30 60 - 79 4 40 7 70 80 - 99 2 20 9 90 100 - 119 1 10 10 100 c. 70% PTS: 1 TOP: Descriptive Statistics
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