Mathematics, 23.04.2020 20:11, ambert432
To avoid unpleasant surprises when the statement comes, you try to record all your credit card transactions in a ledger. Unfortunately, you tend to neglect recording about 5% of your purchases. Suppose that last month, you had 25 purchases on your credit card account. When the statement arrives, you count the number of purchases you forgot to record. The random variable X represents the number of unrecorded transactions in a month with 25 transactions. Explain why this is a binomial experiment. Find and interpret the mean of X. Compute the standard deviation of X. Find the probability that you record all 25 purchases. Find the probability that exactly four purchases would have been unrecorded.
Answers: 2
Mathematics, 21.06.2019 21:00, ImmortalEnigmaYT
Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?
Answers: 2
Mathematics, 21.06.2019 23:00, noahdwilke
36x2 + 49y2 = 1,764 the foci are located at: (-โ13, 0) and (โ13,0) (0, -โ13) and (0,โ13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)
Answers: 1
To avoid unpleasant surprises when the statement comes, you try to record all your credit card trans...
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