37.Refer to Exhibit 2-1. Which of the following is the correct relative frequency for McDonalds?a.0. 27b.0.5c.0.4d.6ANS: CPTS:1TOP:Descriptive Statistics38.Refer to Exhibit 2-1. Which of the following is the correct percent frequency for McDonalds?DPTS:1TOP:Descriptive StatisticsExhibit 2-2The numbers of hours worked (per week) by 400 statistics students are shown below.Number of hoursFrequency0 -920

10-198020-2920030-3910039.Refer to Exhibit 2-2. The class width for this distributionBPTS:1TOP:Descriptive Statistics40.Refer to Exhibit 2-2. The number of students working 19 hours or lessBPTS:1TOP:Descriptive Statistics41.Refer to Exhibit 2-2. The relative frequency of students working 9 hours or lessa.is 20b.is 100c.is 0.95d.0.05ANS: DPTS:1TOP:Descriptive Statistics42.Refer to Exhibit 2-2. The percentage of students working 19 hours or less isBPTS:1TOP:Descriptive Statistics43.Refer to Exhibit 2-2. The cumulative relative frequency for the class of 20 - 29CPTS:1TOP:Descriptive Statistics44.Refer to Exhibit 2-2. The cumulative percent frequency for the class of 30 - 39 isAPTS:1TOP:Descriptive Statistics45.Refer to Exhibit 2-2. The cumulative frequency for the class of 20 - 29a.is 200b.is 300c.is 0.75

d.is 0.5ANS: BPTS:1TOP:Descriptive Statistics46.Refer to Exhibit 2-2. If a cumulative frequency distribution is developed for the above data, the last class will have a cumulative frequency ofDPTS:1TOP:Descriptive Statistics47.Refer to Exhibit 2-2. The percentage of students who work at least 10 hours per week isCPTS:1TOP:Descriptive Statistics48.Refer to Exhibit 2-2. The number of students who work 19 hours or less isBPTS:1TOP:Descriptive Statistics49.Refer to Exhibit 2-2. The midpoint of the last class isa.50b.34c.35d.34.5ANS: DPTS:1TOP:Descriptive StatisticsExhibit 2-3A survey of 800 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school.Undergraduate MajorGraduate SchoolBusinessEngineeringOthersTotalYes7084126280No182208130520Total252292256800