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According to government data, 15% of employed women have never been married. Take a random sample of employed women and observe their marital status.

a. Is x normal, binomial, or geometric? (I don't understand the difference, if someone could explain this to me I would be so grateful!!)

b. If 8 employed women are selected at random, what is the probability that 2 or fewer have never been married?

c. If 8 employed women are selected at random, what are the mean and standard deviation?

 

I know this should be simple but math is really hard for me to understand, if anyone could explain any part of this to me I would really really appreciate it!!:)

 
 May 5, 2017

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