What is the probability that all six arrive within two days? (0.7351) b. What is the probability that exactly five arrive within two days? (0.2321) c. Find the mean number of letters that will arrive within two days. (5.7

Q: Determine the probability that in a sample of 100 the sample proportion is less than .75 if p = 0.80

A: Given, Sample size, n = 100 Population proportion, p =0.8 Z = p^-pp1-pn

Q: The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a mean…

A: Answer: Using the given data, Let X: The number of calls received by an office on morning between…

Q: Find the probability that child spends less than 1.4 per day unsupervised c. What percentage of the…

A: Given X=the amount of time the child spends alone per day Given that X follows a normal distribution…

Q: The United States Postal Service reports 95 percent of first class mail within the same city is…

A: Given,sample size(n)=6 probability of success(p)=0.95and probability of failure(q)=1-0.95=0.05here…

Q: The number of calls received by an office on Monday morning between 8:00 AM and 9:00 AM has a mean…

A: Answer: From the given data, Let X represent the number of calls received by an office on morning…

Q: Objective: Probability involving percentages Business Weekly conducted a survey of recent graduates…

A: (1) Obtain the probability that less than 90% of the 77 recent graduates have an annual salary…

Q: The Badger Insider is a magazine that is sold throughout Madison on daily basis. There are on…

A: Mean = 2100 n = 60 Standard Deviation = 500

Q: Calculate the probability of rolling at least one “5” after 6 rolls: a. Use the relative frequency…

A: In the given situation, dice is rolled 6 times. Total number of outcomes is 6^6=46656 Among 46656…

Q: A recent survey of 980 American adults (18 year olds and over) were asked what their favorite season…

A: The probability that a randomly selected American adult picks Fall as their favorite season is…

Q: A fair coin is flipped 8 times. What is the probability that the number of flips that come up heads…

A: Given - A fair coin is flipped 8 times. To find - What is the probability that the number of flips…

Q: Assume that​ 15% of students at a university wear contact lenses. We randomly pick 200 students.…

A: Given,Population,proportion,,Number of sample,,Using formula,,Z-score =

Q: An automated assembly line produces 43,500 parts per duty cycle. The probability that a randomly…

A:

Q: en studying radioactive​ material, a nuclear engineer found that over 365​ days, 1,000,000…

A: Solution

Q: In Russia, 57 percent of the population use public transportation. In a sample of 10 individuals,…

A: Its binomial probability

Q: ur answer as an exact fraction or a decimal rounded to the s place. picking marbles out of a bag…

A: We have given that,  Yellow = 6 Red = 2 Black = 8 Blue = 6 Purple = 3 Orange = 2 Then,  We will find…

Q: The mean number of defective units in a large assembly line is 4.3 units per day . Find the…

A: It is given that, The mean number of defective units in a large assembly line is 4.3 units per day.…

Q: Please provide the numerator and the denominator for the following probability examples: a. The…

A: Probability of an event:The probability of an event is the number of favourable outcomes divided by…

Q: Compute the probability of drawing two clubs from a standard deck of 52 cards. Round your answer to…

A: GivenTotal no. of cards = 52Total no.of face cards in deck = 12    (i.e., J,Q,K)

Q: The mean number of customers arriving at a restaurant during a 15-minutes period is 12. Find the…

A: We have to find out given probability...

Q: A baseball player has a hitting average of 0.325. If seven at-bats are randomly selected, what is…

A: Givena baseball player has a hitting average(p)=0.325sample size(n)=7Let "x" be no.of…

Q: The average number of calls per minute received by a telephone switchboard is 120. What is the…

A:

Q: b. What is the probability that a simple random sample of 55 unemployed individuals will provide a…

A: For the distribution of the no. of weeks an individual is unemployed, it is given that:The…

Q: The mean number of car sold by Beachcomber LTD per day is 3.What is the probability that in any…

A: Formula , P ( X = x ) = e-λ λx / x!

Q: A population proportion is 0.61. Suppose a random sample of 655 items is sampled randomly from this…

A:

Q: The cashier line of a canteen can facilitate up to 60 customers an hour. Frequenters of the canteen…

A: Given: The frequenters of the canteen arrive at an average of λ=50 per hour. The cashier line of a…

Q: The probability that a component is acceptable is 0.93. Ten components are picked at random. What is…

A: Given The probability that a component is acceptable(p)=0.93sample size(n)=10Let "x" be the no.of…

Q: Provide an appropriate response. The probability that a house in an urban area will develop a leak…

A: P(house in an urban area will develop a leak ) = p = 0.05Sample size (n) = 59P(none of houses…

Q: The weight of potatoes from a supermarket is evenly distributed between 6 and 9 ounces. A bag is…

A: Here, a=6 and b=9.

Q: Airline passengers arrive randomly and independently at the passenger screening facility at a major…

A:

Q: Based on a poll , among adults who regret getting tattoos , 30 % say that the too young when they…

A: Given, p=30% = 0.3 n=5 q=1-p=1-0.3=0.7

Q: The percentages of weapons used in murders in a certain year are described in the pie chart.…

A: Ans A and B: