About % of the area is between z = -1 and z = 1 (or within 1 standard deviation of the mean). Find the indicated area under the curve of the standard normal distribution, then convert it to a percentage and fill in the blank. The results form the basis for the range rule of thumb and the empirical rule introduced in Section 3-3.
Answer to relevant QuestionsAbout % of the area is between z = -2 and z = 2 (or within 2 standard deviations of the mean). Find the indicated area under the curve of the standard normal distribution, then convert it to a percentage and fill in the ...Pulse rates of women are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per minute (based on Data Set 1 in Appendix B). a. What are the values of the mean and standard ...Find the area of the shaded region. The graphs depict IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wechsler test). The Gulfstream 100 is an executive jet that seats six, and it has a doorway height of 51.6 in. a. What percentage of adult men can fit through the door without bending? b. What percentage of adult women can fit through the ...Refer to Data Set 1 in Appendix B and use the pulse rates of males. a. Find the mean and standard deviation, and verify that the pulse rates have a distribution that is roughly normal. b. Treating the unrounded values of the ...
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