A taxi service receives an average of 8.8 calls a day from customers who need a ride to the airport.Use the Poisson distribution to find the probability that exactly 9 customers need a ride on a given day.Do not round intermediate computations, and round your answer to three decimal places.(If necessary, consult a list of formulas.) Suppose that X, Y, and Z are jointly distributed random variables, that is, they are defined on the same sample space.Suppose that we also have the following.E (X)=7Var(X) =E (Y)=0Var(Y) = 30E(Z)= 8Var(Z) = 18= 24Compute the values of the expressions below.E (4Z- 1) = 0?X+Z°E4Var(-2+Y) = 0E(-4r*) = 0

Solution: Date:16-2-2022 As per bartleby policy i answered only…

Answered: A taxi service receives an average of…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Assume that when adults with smartphones are randomly selected, 45% use them in meetings or classes. If 9 adult smartphone users are randomly selected, find the probability that at least 2 of them use their smartphones in meetings or classes. The probability is. (Round to four decimal places as needed.)
ony runs a cell phone kiosk in the mall and has 244 potential customers each day. He has a 7 % chance to make a sale to each customer. Use continuity correction to normally approximate the following probabilities.Round to 4 decimal places.a. The probability that he makes AT LEAST 18 sales b. The probability that he makes AT MOST 16 sales
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Complaints about an Internet brokerage firm occur at a rate of 4 per day. The number of complaints appears to be Poisson distributed. A. Find the probability that the firm receives 5 or more complaints in a day. Probability = B. Find the probability that the firm receives 10 or more complaints in a 3-day period. Probability =
Use the data in the following table, which lists drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. Drive-thru Restaurant A B C D Order Accurate 318 268 233 140 Order Not Accurate 33 51 39 13 If one order is selected, find the probability of getting an order from restaurant B or C or an order that is not accurate.
determine whether the given procedure results in a binomial distribution. if not, give the reason. Rolling a single die 34 times, keeping track of the number of 3s that are rolled.
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Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes. If 10 adult smartphone users are randomly selected, find the probability that at least 8 of them use their smartphones in meetings or classes. The probability is. (Round to four decimal places as needed.)
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