Two cards are chosen at random from a deck of 52 without replacement. what is the probability that the first card is an ace and the second card is a king?

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Jane has 5 nickels.john has 3 dimes.jane says she has a greater amount of money.with the information given,is she correct?