The director of bank observes that their employees leave for the day within 0 to 15 minutes after the bank closes for the day. Assuming these times follow a uniform probability distribution. What is the probability that a bank employee 9 minutes or more after the bank closes? Show your work.

Q: Based on meteorological records, the probability that it will snow in a particular place on December…

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Q: Arthur is an oncologist with 11 patients in their care. The probability that a patient will survive…

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Q: A volcano erupts 10 times in 200 years. What is the probability that it will erupt next year?

A: Poisson Distribution: If the average probability of an event happening per unit, and there is a need…

Q: baseball player has a lifetime batting average of 0.313. If, in a season, this player has 385 "at…

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Q: A standardized exam's scores are normally distributed. In a recent year, the mean test score was…

A: Unusual value: The Z-value is said to be Unusual if the Z is greater than 2 or less than –2. From…

Q: A family's cat is pregnant with 4 kittens. If the probability each kitten will be gray like the…

A: here from given information  p = probability of kitten is not gray  =  1 - 0.49 = 0.51  n =  4

Q: A school newspaper reporter decides to randomly survey 19 students to see if they will attend Tet…

A: Solution: Let X be the number of students attend test festivities and n be the sample number of…

Q: A grocery clerk can serve 20 customers per hour on average and the service time follows an…

A: We have givenλ = 20/60 = 1/3 = 0.33 per minute X ~ Exponential (λ) Since we know that Cdf of…

Q: If the probability that an event does no occur is 0.3 determine the probability that the event…

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Q: Distinguish what the experimental probability is of the player getting a hit. Show all of your work.

A: It is given that  The favourable number of cases = 15 Total number of cases = 45

Q: What is the probability that a sale will be made before the fourth sales call if the probability you…

A: From the given  information, Probability of success (he made sale call) = 0.17 p=0.17q=1-0.17  =0.83…

Q: The amount of time, in seconds, a cashier spends with a customer during lunch time at a fast food…

A: The average amount of time spent with a customer is 160 seconds.

Q: Jane tosses a fair die 3 times. What is the probability she rolls at least 1 five? If necessary,…

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Q: A baseball player has a lifetime batting average of 0.208. If, in a season, this player has 360 "at…

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Q: A school newspaper reporter decides to randomly survey 20 students to see if they will attend Tet…

A: Introduction to binomial distribution: Consider a random experiment involving n independent trials,…

Q: The chance of rain is 20%, the chance of it being sunny is 60%, and the chance of it being sunny and…

A: Given that, The chance of rain is 20% The chance of it being sunny is 60% The chance of it being…

Q: The probability that a student pilot passes the written test for a private pilot's license is 0.55.…

A: Probability distributions are of two types, discrete and continuous distributions. Binomial…

Q: It snows in Greenland an average of once in 20 days, and when it does, glaciers have a 25% chance of…

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Q: A baseball player has a lifetime batting average of 0.213. If, in a season, this player has 365 "at…

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Q: Suppose a baseball player's batting average is .325. What is the probability that in the next 100…

A: Given, p = 0.325 n = 100 trials X = number of times, out of 100 that are success

Q: Suppose a fair coin is tossed 3 times. Find the probability distribution for the number of tails…

A: Given : Experiment :  A fair coin is tossed 3 times Possible outcomes : Ω = { HHH , HHT , HTH , THH…

Q: If the probability that a randomly chosen college student takes statistics is 0.34, then what is the…

A: The probability that a randomly chosen college student takes statistics is 0.34. The probability…

Q: A study of pregnant women found that the length of pregnancies is normally distributed with a mean…

A: Solution: Let X be the length of pregnancies. From the given information, X follows normal…

Q: Suppose a batsman can hit the ball 50% of the time. Assume that the batsman has seen 6 balls and hit…

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Q: Suppose that the life span of a certain automobile tire is normally distributed, with μ = 25, 000…

A: Let X denote the life span of a certain automobile tire.Given that X follows a normal distribution…

Q: Tennis great Roger Federer made 65% of his first serves in the 2011 season. When Federer made his…

A: Given data; First serve  = 65% Fisrt serve win = 78% Second serve win = 57% To find:  the…

Q: The probability that a given person at the band shell buys their album is 20% the probability that…

A: Given that - The probability that a given person at the band shell buys their album is 20% the…

Q: A light bulb manufactoring plant makes LED bulbs. It is known the the average life is 10,000 hours.…

A: Consider X be the random variable which represents the life of the LED bulbs. X follows exponential…

Q: Doctors have indicated that 33% of the US population has A+ blood which is the second most common…

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