Abox at a yard sale contains 3 different china dinner sets, each consisting of 5 plates. a customer will randomly select 2 plates to check for defects. what is the probability that the 2 plates selected will be from the same dinner set?

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)

Cuántos triángulos forman un diamante