The probability that your call to a service line is answered in less than 30 seconds is 0.75. Assume that your calls are independent. what is the probability that you must call four times to obtain the first answer in less than 30 seconds?

Q: The probability that Mr. Johnson goes for an evening walk on any given day during the summer is…

A: The probability that Mr. Johnson goes for an evening walk on any given day during the summer is…

Q: Alfie travels to work by car each morning. The probability that he is late to work on any given day…

A: Solution: Let X be the number of number of days Alfie is late and n be the sample number of days.…

Q: Aden buys a bag of cookies that contains 5 chocolate chip cookies, 4 peanut butter cookies, 4 sugar…

A: number of chocolate chip cookies in a bag = 5 number of  peanut butter cookies in a bag = 4 number…

Q: Neveah buys a bag of cookies that contains 5 chocolate chip cookies, 6 peanut butter cookies, 5…

A:

Q: A researcher knows that number of people having a rare gene is on average 0.5 per  1000 people. Find…

A: Given that  The number of people having a rare gene is on average per 1000 people = 0.5 The number…

Q: The average number of Presta value sold in a month at Pete’s bike shop is 8. What is the probability…

A: We have given that Mean=λ=8 X~Poisson(λ=8)

Q: The probability that a student in Oakland will receive a B in Kathy Williamson's statistics class is…

A: Given that, The probability that a student in Oakland will receive a B in Kathy Williamson's…

Q: You roll a 4-sided die 10 times What is the probability you roll a 1 exactly 5 times? What is the…

A: In question, Given a 4 sided rolled 10 times then we'll find the probability that, (1). Getting 1…

Q: lobe has a number of inquiries arriving in their system at 3 inquiries per minute. What is the…

A: Consider X denotes inquiries arriving in the system which follows Poisson distribution with λ=3.

Q: A pharmacist receives a shipment of 2121 bottles of a drug and has 44 of the bottles tested. If 66…

A: From the provided information, A pharmacist receives a shipment of 21 bottles of a drug and has 4 of…

Q: The probability of a student who wants to become a pilot to pass the written exam for private pilot…

A: We have to find given probability.

Q: A virologist vaccinates a few mice one at a time with a virus until he finds 3 that have contracted…

A: Negative Binomial Distribution: If we have a sequence of trials each having two outcomes, say…

Q: Garrett buys a bag of cookies that contains 6 chocolate chip cookies, 5 peanut butter cookies, 9…

A: From the provided information, Total number of cookies = 6 + 5 + 9 + 5 = 25

Q: The supplier sent a batch of 10000 parts to the customer. The probability of damage to one part…

A: In question, Given that The supplier sent a batch of 10000 parts to the customer. The probability of…

Q: If the probability of an event not occurring is 0.68, what is the probability the event will occur?…

A: P(an event not occuring)=0.68

Q: The probability is 0.0651 that the 4th applicant for a factory job will be hired on the 10th…

A: Given that, the probability is 0.0651 that the 4th applicant for a factory job will be hired on the…

Q: The average number of Single-decker bus that you can see on your drive to work is 26, what is the…

A: Answer: From the given data, X: Number of Single-Decker busses that you can see on your drive to…

Q: Find the probability that it was not filed against united Airlines

A: We have given that  Number of complaints filed against United Airlines = 1172  Total number of…

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: Thirty percent of law students who sit for a bar exam pass first time. The probability rounded to…

A: Solution: Let X be the random variable that the law students who sit for a bar exam pass first time.…

Q: The average number of cars that enter the mountain through the tunnel is one every two minutes. If…

A: The Poisson distribution is used to calculate the probability of getting r number of…

Q: Assume that when adults with smartphones are randomly​ selected, 42​% use them in meetings or…

A: Here, theoretically, if we consider using of smartphones during meetings or classes, when selected…

Q: The average number of loaves of bread put on a shelf in a bakery in a half-hour period is 12. Of…

A: Given dataThe average number of loaves of bread put on a shelf in a bakery in a half-hour period is…

Q: Gregory buys a bag of cookies that contains 7 chocolate chip cookies, 5 peanut butter cookies, 8…

A: We  have given the following   7 chocolate chip cookies,  5 peanut butter cookies  8 sugar cookies,…

Q: There are 84 passengers on an airline. 32 are traveling first-class. 30 are males. 52 are either…

A:

Q: Cornell buys a bag of cookies that contains 5 chocolate chip cookies, 6 peanut butter cookies, 4…

A: Given that,The number of chocolate chip cookies is The number of peanut butter cookies is The number…

Q: The probability that a high school student get less than 5 hours of sleep on average is 35.2%. The…

A:

Q: A number of customers arrive at a cafeteria during lunch hour at an average rate of 0.025 per…

A: Reviewing information, X: Average rate of arrival of customers= 0.025 per second

Q: an observer counts 36O vehicles per hour at a highway. estimate the probability of having more than…

A: A observer count 360 vehicle per hour at a highway.

Q: In a certain industrial facility, accidents occur infrequently. It is known that the probability of…

A:

Q: n applicant is selected at random, what is the probability that he/she passes the academic…

A: Given:     Work Experience standards      yes  No  Total Academic Achievement Standards  yes…

Q: If the auto parts sales have increased, find the probability that car sales will also increase…

A: The probability that car sales will increase next month is 0.45. The probability that sale of auto…

Q: A courier service makes an average of 500 deliveries a week, plus / minus 50. The manager wants to…

A: Given information: The average of 500 deliveries a week plus/minus 50. That is, mean is 500 and…

Q: If the probability of hitting a goal ball player is 0.4, then if this player wants to hit the goal…

A: Probability of hitting a goal is  p=0.4 Probability of not hitting a goal is  q=1-0.4= 0.6

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.