e.SAT ScoresGenderLess than 2020 up to 2525 and moreFemale37.5%63.6%66.7%Male62.5%36.4%33.3%Total100%100%100%
PTS:1TOP:Descriptive Statistics14.For the following observations, plot a scatter diagram and indicate what kind of relationship (if any) exist between x and y.xy2761939517411PTS:1TOP:Descriptive Statistics15.For the following observations, plot a scatter diagram and indicate what kind of relationship (if any) exist between x and y.xy845539212114
PTS:1TOP:Descriptive Statistics16.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.RelativePercentMajorFrequencyFrequencyFrequencyAccounting600.1212Finance1000.2020Economics400.088Management1200.2424Marketing800.1616Engineering600.1212Computer Science400.088Total5001.00100PTS:1TOP:Descriptive Statistics17.A sample of the ages of 10 employees of a company is shown below.
20304030503020302040Construct a dot plot for the above data.ANS:••••••••••102030405060PTS:1TOP:Descriptive Statistics18.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 ofRelativePercentCum.Sick Leave TakenFreq.Freq.Freq.Freq.10 - 1960.2020620 - 29110.37371730 - 3950.16162240 - 4960.20202850 - 5920.07730d. 22PTS:1TOP:Descriptive Statistics19.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.)
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 PricePercentCum.Percent(In Thousands of Dollars)Freq.Freq.Freq.Freq.20 - 3911011040 - 5922033060 - 7944077080 - 99220990100 - 11911010100c. 70%PTS:1TOP:Descriptive Statistics