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1.Tickets for a raffle cosr $18. There were 619 tickets sold. One ticket will be randomly selected as the winner, and that person wins $1800 and also the person is given back the cost of the ticket. For someone who buys a ticket, what is the Expected Value (the mean of the distribution)?
If the Expected Value is negative, be sure to include the "-" sign with the answer. Express the answer rounded to two decimal places.
Expected Value = ?
2.About 5% of the population has a particular genetic mutation. 700 people are randomly selected.
Find the mean for the number of people with the genetic mutation in such groups of 700.
3.About 7% of the population has a particular genetic mutation. 900 people are randomly selected.
Find the standard deviation for the number of people with the genetic mutation in such groups of 900.
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Estimate the population mean
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