Chapter 4, Problem 2CRE

Unusual/Unlikely Events

1. a. The mean pulse rate for adult women is 77.5 beats per minute, with a standard deviation of 11.6 beats per minute (based on Data Set 1 in Appendix B). Using the range rule of thumb, would a pulse rate of 100 beats per minute be considered unusual? Explain.
2. b. For the pulse rates of adult women described in part (a), is a pulse rate of 50 beats per minute unusual? Explain.
3. c. For a couple having eight children, is it unlikely to have all girls? Explain.
4. d. For a couple having three children, is it unlikely to have all girls? Explain.