Use the relative frequency histograms in Figure 4.46, based on the variable weight

(WT) for the case and control groups in the Benign Breast Disease data set (???? = 200), to answer the following questions.

(a) Describe the general shape of the each distribution suggested by the histograms in Figure 4.46.

(b) Do the histograms in Figure 4.46 support the use of the same probability model for modeling the weights of the case subjects and the control subjects? Why?

(c) Does the histogram for the case subjects support the use of the normal probability model for weight? Why?

(d) Does the histogram for the control subjects support the use of the normal probability model for weight? Why?

(e) Which subpopulation appears to have a higher percentage of women weighing between 80 and 130?

Transcribed Image Text:

30- 25- Percent GIGN 10- 20 15- Case subjects 53125050 Percent Control subjects 80 104 128 152 176 80 130 180 230 280 WT WT