The cumulative frequency and cumulative relative frequency for a particular class interval are the sum of frequencies and relative frequencies, respectively, for that interval and all intervals lying below it. If, for example, 5 5 5 5 5 5 5 IDT log10(IDT) IDT log10(IDT) IDT log10(IDT)

72 Use class intervals to construct a histogram of the original data. Use intervals to do the same for the transformed data. What is the effect of the transformation?