A particularly long traffic light on your morning commute is green 22% of the time that you approach it. ASsume that each morning represents an independent trial. Over 5 mornings, The probability that the light Is greermon exactly 3 days is

Q: Suppose a clinical trial is conducted to test the efficacy of a new drug, spectinomycin, for…

A: Given information: Number of patients who are given a 4-g daily dose of the drug n=46 Number of…

Q: A new surgery is successful 80 percent of the time. If the results of 9 such surgeries are randomly…

A: P =Probability of successful surgery and x=no of successful surgerys.  given, P=0.08              n…

Q: In a large population, 64% of the people have been vaccinated. If 4 people are randomly selected,…

A:

Q: Suppose a life insurance company sells a $270,000 one-year term life insurance policy to a…

A: Formula for expected value :  Expected value= ∑xP(x)

Q: A survey finds customers are charged incorrectly for 1 out of every 10 items. Suppose a customer…

A: Binomial distribution is given by

Q: The ABCD ELECTRONICS has just manufactured 5000 blu-rays, and 50 are defective  if 5 of these…

A:

Q: A recent study has shown that 45% of recent college graduates are able to find full-time employment…

A:

Q: The probability that an iPOD’s battery will need replacing within two years is 21%. A store sold 15…

A:

Q: The probability that a glove will not crack in a smasso test is 0.70. What is the probability that…

A: The probability that a glove will not crack in a smasso test is 0.70. What is the probability that…

Q: A credit card company randomly generates temporary 5 digit pass codes for cardholders. Mehgan is…

A: Given information: A credit card company randomly generates temporary 5 digit pass codes for…

Q: determine the probability that the telemarketer makes the second sale before the fifth call

A:

Q: A survey finds that customers are charged incorrectly for 4 out of every 30 items, on average.…

A: We have given that  Number of trials n=13 Success of probability p =4/30=0.1333 X~binomial ( n, p)

Q: When taping a television commercial, the probabilityis 0.30 that a certain actor will get his lines…

A:

Q: The Kwik-Clean Car Wash loses $30 (profit of – $ 30) on rainy days and has a profit of $120 on days…

A: It is given that the probability of getting rain tomorrow is 0.25.

Q: A manufacturer estimates that 1.5% of his output of a small item is defective. Find the probability…

A: We have to find probability using exact bínomial distributaion.

Q: In a large population, 64 % of the people have been vaccinated. If 5 people are randomly selected,…

A: Probability = 64% = 0.64 Sample size, n = 5

Q: A production line estimates that 1.50% of the items it produce is defective. In a package containing…

A:

Q: An archer is able to hit the bull's-eye 60% of the time. If she shoots 25 arrows, what is the…

A: Let "X" be she is able to hit the bulls-eye.

Q: In a preparation test, past data showed that 40% of the students came unprepared. In a sample of 8…

A: We have given that p = 40% = 0.40 n = 8 X follows the Binomial (8, 0.40)The PMF of the Binomial…

Q: Suppose a life insurance company sells a $120,000 one-year term life insurance policy to a…

A: Given P=0.999356 q=1-p     =1-0.999356     =0.000644

Q: Suppose that a policeman with a radar gun is watching traffic pass on a street where it is the case…

A: Given that : The policeman with a radar gun is watching traffic pass on a street where it is the…

Q: A certain airport receives on an average of 4 aircrafts per hour. What is the probability that no…

A:

Q: The average number of calls received by a switchboard in a 30-minute period is 18.

A: It is given that the average number of call received by a switchboard in a 30 minutes periods is 18.…

Q: The owner of a car wash shop noticed that on normal days there are 4 cars that enter the shop at one…

A:

Q: Suppose that a policeman with a radar gun is watching traffic pass on a street where it is the case…

A:

Q: In a video game, a specific attack succeeds at a rate of 18% and every try is independent.…

A:

Q: The experimental probability that Morgan will randomly select a penny from a bag of coins is 19100.…

A: Given that

Q: Compton Computers finds that the time to failure of its power supply unit is 4000hours. One unit…

A: Mean time between failures =MTBF = 1λ= 4000 hours where λ represents the failure rate Time to…

Q: It is found that 361 freshmen students are taking EDA, 104 are taking physics, 191 are taking…

A: Students taking EDA P(EDA)= 361 Students taking Physics P(PHY)= 104 Students taking Calculus ,…

Q: ssume that 33.2​% of people have sleepwalked. Assume that in a random sample of 1454 ​adults, 523…

A: Given: The population proportion of people who sleepwalked, P = 0.332            Sample size, n =…

Q: In a large population, 67 % of the people have been vaccinated. If 4 people are randomly selected,…

A: Let us denote X=the number of people who have been vaccinated n=sample size= 4 p=probability of…

Q: In a factory, there were 12 accidents involving machinery in the last six months.  (d) Calculate…

A: Given, In a factory, there were 12 accidents in the last 6 months => 12/6 = 2 accidents per month…

Q: A doorman at a hotel is trying to get three taxi-cabs for three couples. The arrival of empty cabs…

A:

Q: If a seed is planted, it has a 95% chance of growing into a healthy plant. If 12 seeds are planted,…

A:

Q: in a large population 68% of the people have been vaccinated,if 4 people were selected, what is the…

A:

Q: A family in Nepal is planning to have N=22 children. This inforrmation is given. The probability of…

A: It is given that, p=23%=0.23 N=22

Q: Suppose that a fast food restaurant can expect two customers every 3 minutes, on average. What is…

A: Given: Mean number of customers every 3 minutes = 2 Mean number of customers for 9 minutes = 2×93=6…

Q: with a mean life of 500 hours. Suppose that the component was in operation for 400 hours. What is…

A: Since you have asked multiple question, according to our guidelines we will solve the first question…

Q: A fair die is cast three times. What is the probability that it shows an even number on the first…

A: According to the given question:Outcomes when a die is rolled are: 1,2,3,4,5,6In the given question…

Q: An aerospace company builds a type of cruise missiles. Suppose, on average, the first failure of…

A: Let there is a sequence of trials, each having two outcomes, say Success and Failure, trials being…

Q: 7 percent of all cooling fans produced in a factory are defective. A quality inspector randomly…

A: Let p be the probability that a fan is defective. Given that p = 7% = 0.07 Let X denote number of…

Q: A contractor is considering a sale that promises a profit $26000 with a probability of 0.7 (due to…

A:

Q: In a video game, a specific attack succeeds at a rate of 20% and every try is independent. Determine…

A:

Q: The probability of a successful operation in an industry is 0.75. What is the probability that the…

A: Geometric Distribution: Let there is a sequence of trials, each having two outcomes, say Success and…

Q: The flight from Greenville to Charlotte can take anywhere from 43 minutes to 68 minutes.  Suppose…

A:

Q: A baker bakes 100 loaves of bread in a day, 10 of which weigh less than they should. An inspector…

A:

Q: ssume that a student alarm clock has a 6.6 % daily  failure rate. What is the probability that the…

A: It is given that the student’s alarm clock has 6.6% daily failure rate.

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.