1.Suppose a normal distribution has u =1.4,and o =0.2, calculate the z -score f or x= 3.5
4. Suppose a normal distribution has
u = 1.5 and o = 0.3
Find the z-score and the associated area under the standard normal curve for the following values of x.
5. A campus club sells 500 raffle tickets at a price of $2 each. The raffle offers one $100 dollar prize, two $50 prizes, and five $25 prizes. What is the expected value of a raffle ticket? (Apply the concepts of Probability Distribution and expected value, as appropriate)
6. Calculate the standard deviation of the following set of scores: 45, 52, 45, 40
7. Determine the probability that a randomly selected data value will fall within 1.67 standard deviations of the mean.
Which one? 45.25%,90.5%,85.5%,or30.25%
detailed solutions to the problems is given.