4.Phone calls arrive at the rate of 48 per hour at a Call Center.a. What is the probability of receiving 3 calls in a 5-minute interval of time?μ=f(3) =b. What is the probability of receiving exactly 10 calls in 15 minutes?μ=f(10) =c. Suppose no calls are currently on hold. If the Call Center Agent takes 5 minutes to complete thecurrent call, how many callers does he expect to be waiting by that time? What is the probabilitythat none will be waiting?μ=f(0) =d. If no calls are currently being processed, what is the probability that the Call Center Agent can take3 minutes of personal time without being interrupted by a call?μ=f(0) =

As per Bartleby guidelines I can't answer more than three sub parts per post. Hope you understand.

Answered: 4. Phone calls arrive at the rate of 48…

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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6.55 More on determining hypotheses. State the null hypothesis Ho and the alternative hypothesis Ha in each case. Be sure to identify the parameters that you use to state the hypotheses. (a) A university gives credit in first-year calculus to students who pass a placement test. The mathematics department wants to know if students who get credit in this way differ in their success with second-year calculus. Scores in second-year calculus are scaled so the average each year is equivalent to a 77. This year, 21 students who took second-year calculus passed the placement test.
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A recent survey of 1040 U.S. adults selected at random showed that 634 consider the occupation of firefighter to have very great prestige. Estimate the probability (to the nearest hundredth) that a U.S. adult selected at random thinks the occupation of firefighter has very great prestige.Step 1Recall that the probability of an event based on relative frequency uses the formulaprobability of event = relative frequency = fn,where f is the frequency of the event occurrence in a sample of n observations. A total of 1040 people were surveyed and 634 considered the occupation of firefighter to have very great prestige. Therefore, the sample size is n = . The event of interest is that a U.S. adult selected at random thinks the occupation of firefighter has very great prestige. Therefore, the frequency f is equal to the number of adults who the occupation of firefighter has very great prestige, so f = (0.6096 answer is incorrect.) .
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