这是一道统计学的英文数学题,因为我真的看不懂
Insteadofwantingtoknowwhatpercentofthedatafallsintoaparticularclass,weoftenwantto
knowwhatpercentfallsbelowacertainvalue.Tomakethispossible,wewillcomputethe
cumulativerelativefrequencyforeachclass,whichisthesumoftherelativefrequencyofthatclass
andalltheclassesbelowit.
ExamScorefrequencyrelativefreq.cumulativer.f.
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