Please help, the answer choices are A. a=1
B. a is less than zero
C. it’s not possible to tell whether a is greater than or less than zero
D. a is greater than zero

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

If m 17 27 90 63 ** picture is attached

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?