(Answered) Calculate the percentage of the population

Statistics

1. The mean height of the women in a large population is 1.671m while the mean height of the men in the population is 1.758m. The mean height of all the members of the population is 1.712m.

Required:

Calculate the percentage of the population who are women.

2. Consider a group of 10 life insurance policies, seven of which are on male lives and three of which are on female lives. Three of the 10 policies are chosen at random (one after the other, without replacement).

Required:

Find the probability that the three selected policies are all on male lives.

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Statistics and Probability, Statistics

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