A population of values has a normal distribution with μ=8.9 and σ=36.9. You intend to draw a random sample of size n=23. Find the probability that a single randomly selected value is greater than 33.5.
P(X > 33.5) =

Find the probability that a sample of size n=23 is randomly selected with a mean greater than 33.5.
P(M > 33.5) =

Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.