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Overdraft fees from some of the largest banks range from $9 to $39. Consumers believe these charges are annoying and excessive, but the fees generate huge revenue for banks, $34.3 billion in 2017. The Overdraft Protection Act of 2013 is designed to limit overdraft fees in a variety of ways and to require fees to be reasonable and proportional to the amount of the overdraft. Let X be the amount of an overdraft fee for a randomly selected bank. The probability distribution for X is given in the table. x'101215 20 25 27 30 35 38 p(x)'0.020.060.080.100.160.280.150.07008 Find the mean u, variance 0'2, and standard deviation 0' of the overdraft amount. (Use decimal notation. Give your answers to four decimal places if necessary.) Overdraft fees from some of the largest banks range from $9 to $39. Consumers believe these charges are annoying and excessive, but the fees generate huge revenue for banks, $34.3 billion in 2017. The Overdraft Protection Act of 2013 is designed to limit overdraft fees in a variety of ways and to require fees to be reasonable and proportional to the amount of the overdraft. Let X be the amount of an overdraft fee for a randomly selected bank. The probability distribution for X is given in the table. x'101215 2O 25 27 30 35 38 p(x)'0.020.060.080.100.160.280.150.070.08 Find the probability that a randomly selected bank has an overdraft fee greater than $25. (Use decimal notation. Give your answer to two decimal places.) Overdraft fees from some of the largest banks range from $9 to $39. Consumers believe these charges are annoying and excessive, but the fees generate huge revenue for banks, $34.3 billion in 2017. The Overdraft Protection Act of 2013 is designed to limit overdraft fees in a variety of ways and to require fees to be reasonable and proportional to the amount of the overdraft. Let X be the amount of an overdraft fee for a randomly selected bank. The probability distribution for X is given in the table. x'101215 20 25 27 30 35 38 p(x)'0.020.060.080.100.160.280.150.070.08 Find the probability that a randomly selected bank has an overdraft fee less than ,u 0'. (Use decimal notation. Give your answer to two decimal places.) Overdraft fees from some of the largest banks range from $9 to $39. Consumers believe these charges are annoying and excessive, but the fees generate huge revenue for banks, $34.3 billion in 2017. The Overdraft Protection Act of 2013 is designed to limit overdraft fees in a variety of ways and to require fees to be reasonable and proportional to the amount of the overdraft. Let X be the amount of an overdraft fee for a randomly selected bank. The probability distribution for X is given in the table. x'101215 20 25 27 30 35 38 p(x)'0.020.060.080.100.160.280.150.070.08 Suppose three banks are selected at random. What is the probability that at least one bank has an overdraft fee less than $20? (Use decimal notation. Give your answer to four decimal places.)
