Mathematics, 16.10.2019 00:10 hannahmxx2
Customers at a gas station pay with a credit card (a), debit card (b), or cash (c). assume that successive customers make independent choices with p(a) = 0.6, p(b) = 0.2, and p(c) = 0.2. (a) among the next 100 customers, what are the mean and variance of the number who pay with a debit card? mean customers variance customers2 explain your reasoning. because we are interested in whether or not a debit card was used, we can use the binomial distribution. x = the number of customers who use a debit card. because we are interested in whether or not a debit card was used, we can use the binomial distribution. x = the probability that a customer used a debit card. because we are interested in whether or not a debit card was used, we can use the binomial distribution. x = the number of customers at the gas station. (b) answer part (a) for the number among the 100 who don't pay with cash. mean customers variance customers2
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Mathematics, 21.06.2019 21:30, kyandrewilliams1
Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price
Answers: 2
Customers at a gas station pay with a credit card (a), debit card (b), or cash (c). assume that succ...