Heights of adult males are known to have a normal distribution. A researcher cla

Question

Heights of adult males are known to have a normal distribution. A researcher claims to have randomly selected adult males and measured their heights with the resulting relative frequency distribution as shown here Identify two Relative Height (om) Frequency 130-1442597 _145-159+ 24%-- major flaws with these results. 160-174 190-204| 29% Select all that apply All of the relative frequences appear to be roughly the same if they are from a normal distribution·they should start low, reach a maximum, and then decrease B. The classes do not allow for the possibility that an aduit male could be between 144 cm and 145 en tal, or between 159 en and 100 em tan, and so on. c. The classes do not allow for the possibility that an adult male could be less than 130 cm tall or greater than 204 crn tall. D. An of the relative frequencies are different if they are from a normal dstribution, they should all be exacty the same E. The relative frequencies were recorded as percents instead of counts. F. The sum of the relative frequencies is 120%, but it should be 100%, with a small posable round off error

Explanation / Answer

Option A and F are the required answers. Because here sum of all relative frequencies should be 100% but it is not and also the For normal distribution they should increase, reach maximum and the. Decrease

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