Approximately 80% of students do their homework in time. Each student does homework independently. In a class of 40, what is the probability that at least 39 students will do their homework on time? Students are selected randomly. 0.001462 0.004276 0.007285 0.009353 0.032293 0.059264

Q: Fifteen percent of the products produced by an industrial robot are known to be defective. A…

A: Given p=15%=0.15sample size(n)=6Let "x" be no. of products selected by the quality-control inspector…

Q: The seedlings of a particular type of tree are randomly dispersed in a large area, with an average…

A: Here we have given that λ = 6 We will use Poisson distribution to find the probability

Q: A batch contains electronic devices. 20% of them are defective. 6 devices are randomly selected.…

A: Note: the option G is hidden which is meant to be correct. Binomial distribution: The probability…

Q: Airlines report that 45% of its flights are on time.  In a random sample of 80 flights, what is the…

A: Given, Let A be the event of success that Airlines report of its flights are on time Random sample…

Q: Eighty-two % of trees planted by a local landscaping company survive. In a random sample of 200…

A: Solution

Q: telephone calls between 8:00 am and 11:00 am. What is the probability that John receives at least…

A: Given:-  number of calls receive by a answering machine between 8:00 am and 11:00 am=7 To find the…

Q: Suppose 76% of internet searches used Google. If we take a sample of 8 searches, what is the…

A: Given thatp = 76% = 0.76n = 8X ~Binomial(n, p) X ~ Binomial (8, 0.76)The PMF of the Binomial…

Q: John's answering machine receives about 24 telephone calls between 8:00 am and 10:00 am. What is the…

A:

Q: A nationwide survey of seniors by the University of Michigan reveals that almost 30.0% disapprove of…

A:

Q: Approximately 80% of students do their homework in time. Each student does homework independently.…

A: Solution

Q: If one student is randomly chosen from the group, what is the probability that the student chose…

A: Given problem Given that     Homework Housework Outside Employment Recreation Other Total…

Q: The 5/39 lottery is currently played in California, New York, Michigan, Minnesota, Pennsylvania, and…

A: Introduction: In a 5/39 lottery, 5 number must be chosen from a list of 39 numbers. It can be…

Q: A certain type of ochro seed germinates 75% of the time. A backyard farmer planted 6 seeds. What is…

A: Givenn=6p=0.75x~Binomial(n=6,p=0.75)P(X=x)=Cxn px (1-p)n-x  ; x=0,1,2...,n

Q: 16 of the 200 digital video recorders​ (DVRs) in an inventory are known to be defective. What is the…

A: Given that, 16 of the 200 digital video recorders​  (DVRs) in an inventory are known to be…

Q: In the US, 10.5% of the population is diabetic. What is the probability that in a random sample of…

A: Suppose p is the true proportion of diabetic people in the U.S.

Q: In a large online music database 15% of the songs are from the K-Pop genre. A random sample of ten…

A:

Q: John's answering machine receives about 13 telephone calls between 8 a.m. and 10 a.m. What is the…

A:

Q: Find the indicated probability. The brand name of a certain chain of coffee shops has a 57%…

A:

Q: 10.2% of the population is 65 or older. Find the probability that the following number of persons…

A: According to the given information, we have Sample size, n = 20

Q: It was discovered that 80% of meat markets have vermin (rats, roaches and other insects) that can…

A: Given,p=0.80q=1-0.80=0.20Let X=no.of markets inspected before he will find one that has…

Q: One in eight containers at the seaport in Durban is temporarily misplaced. A random sample of 12…

A: From the provided information, One in eight containers at the seaport in Durban is temporarily…

Q: 39.4% of US homes continue to use a landline in addition to cell phone service. 6 US homes are…

A:

Q: A new drug cures 65% of the patients who take it. If it is given to 14 patients, what is the…

A:

Q: The proportion of individuals that regularly smoke in a population is known to be 0.25. What is the…

A: Given information: p=0.25 Sample size, n=100

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A: Given that, Twenty-six percent of couples who plan to marry this year are planning destination…

Q: If there is an average of 1.1 composting bins per residential city block in Saskatoon, what is the…

A: It is given that, there is an average of 1.1 compositing bins per residential city block.Suppose a…

Q: In a large population, 56 % of the people have been vaccinated. If 3 people are randomly selected,…

A: P(vaccinated) =p = 0.56 P(not vaccinated) = 1-0.56 = 0.44

Q: Customers use an automatic teller machine at an average rate of 15 per hour.  What is the…

A: Given: Average rate, λ=12

Q: The annual average number of times Barron's subscribers take local flights for personal reasons is 4…

A:

Q: 5. Out of all registered vehicles in California, 95% of them pass the State Emissions Test. If ten…

A: Given information Probability of passing the emission test p = 0.95 10 vehicles are selected X…

Q: A certain insecticide kills 60% of all insects in a laboratory experiment.  A sample of 9 insects is…

A: The random variable  is the number of insects that will die.The number of trials: The probability of…

Q: Bananas have an average rotting rate of 0.1%. A banana shipping company boxes bananas 48 to a box.…

A: Introduction: Denote X as the number of rotten bananas, among the n = 4 chosen bananas from a…

Q: Assume that 15% of the drivers in a certain city do not have a valid driving license. A policeman…

A: The probability that a driver have a valid driving license (p) = 0.85(1-0.15)   Consider a random…

Q: Due to the COVID pandemic, only 22% of restaurants currently have in-person dining. Suppose you…

A: Let x follows binomial distribution with parameters n = 9 and p = 0.22   The pdf of binomial…

Q: Of all registered automobiles in a city, 10% fail the emissions test. Fifteen automobiles are…

A: Provided information is ; number of trials(n) = 15 10 % fails the emissions test = p= 0.1 therefore…

Q: In a certain country, 47 percent of the population are on a strict diet. In a sample of 20…

A: