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 major flaws with these results. height (cm) relative frequency 130dash-144 2222 % 145dash-159 2424 % 160dash-174 2121 % 175dash-189 2626 % 190dash-204 2828 %

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Mathematics

Brenton

22 May, 17:47

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 major flaws with these results. height (cm) relative frequency 130dash-144 2222 % 145dash-159 2424 % 160dash-174 2121 % 175dash-189 2626 % 190dash-204 2828 %

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Francesca Anderson · Answer 1

From the table the major flaws that can be identified are:

1. The sum of the relative frequencies of the dat set is greater than 100% which is not possible.

For any dataset, the sum of the relative freduency must be 100%

2.) the distribution of the data is not symmetric.