A hospital has an urgent need for four units of type A+ blood. Assume that approximately 28% of the population has this type of blood. If there are 12 people waiting to donate one unit of blood, what is the probability that the hospital will be able to meet its need? (Hint: Subtract the probability that fewer than four people have A+ blood from 1.)

Q: In a large population, 61 % of the people have been vaccinated. If 4 people are randomly selected,…

A: The question is about discrete probability distribution Given : Popl. prop. of people have been…

Q: A monk crossbred plants, which can have purple or white flowers, and obtained 600 plants with white…

A: The number of white flower plant are 600. The number of purple flower plant are 250.

Q: In a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and 2 had…

A:

Q: In a large population, 59% of the people have been vaccinated. If 5 people are randomly selected,…

A:

Q: In a physical fitness test it is known that the probability that a person passes it satisfactorily…

A: Givenn=8probability for people fail in test =…

Q: A high school baseball player has a 0.158 batting average. In one game, he gets 8 at bats. What is…

A: The binomial probability distribution is, PX=x=nxpx1-pn-x In the formula, n denotes the number of…

Q: A math professor finds that when she schedules an office hour for student help, an average of 2.3…

A: Step 1:The probability mass function of the poisson distribution is given by…

Q: In a large population, 53 % of the people have been vaccinated. If 4 people are randomly selected,…

A: Given information- Given problem is of binomial distribution. Probability of success, p = 0.53 No.…

Q: In a large population, 52 % of the people have been vaccinated. If 5 people are randomly selected,…

A: Let p be the proportion of vaccinated people. Given that p = 0.52 Let X denotes the number of…

Q: Sam is an archer and hits targets with 70% accuracy. If shots are independent of each other, what is…

A: Given Sam is an archer and hits targets with 70% accuracy and shots are independent of each other.…

Q: n average cleo catches a fish on 45% of the times that he casts his fishing line. If he casts his…

A: Given data, Proportion of cleo catches a fish is p=45% =0.45 n=15 what is the probability that he…

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: 53% of undergrads at UD are from Ohio. If a Simple Random Sample of 180 UD undergrads will be taken,…

A: proportion of Undergrads at UD are from Ohio(p)=0.53sample size(n)=180Mean()=p=0.53standard…

Q: A candy box contains four flavors of candies: 6 lemon-flavored, 12 strawberry-flavored, 8…

A: Given: A candy box contains four flavors of candies: 6 lemon-flavored, 12 strawberry-flavored, 8…

Q: You want to purchase a DVD drive for your laptop computer. Assume that 55 ​% of the drives are made…

A:

Q: A manufacturer claims that a new drug is 85% effective. If the drug is given to 10 patients, find…

A: The binomial probability distribution is, PX=x=nxpx1-pn-x In the formula, n denotes the number of…

Q: Suppose that 60% of all California motorists are insured. Find the probability  that more than 55%…

A: given data  P(insured) = p = 0.60 sample size n = 100 P(p^>0.55) = ?

Q: A newspaper report states that the probability of snow is .3. After calling the airport you are told…

A: As given, the probability of snow is 0.3, That is, P(snow) = 0.3 Therefore , P( not snow) = 1- P(…

Q: An airline estimates that 6% of people booked on their flights do not show up. If the airline books…

A: Let X be the random variable from binomial distribution with probability of will not show up (q)= 6%…

Q: Doctors have indicated that 33% of the US population has A+ blood which is the second most common…

A:

Q: 42 students, there were 11 men and 31 women. Six of the men and seven of the women received an A.…

A: The probability can be calculated as: Probability = Number of favorable outcomes/ Total number of…

Q: A high school baseball player has a 0.246 batting average. In one game, he gets 8 at bats. What is…

A: Given information- We have given a problem of the binomial distribution. Batting average of a…

Q: According to a study, airline fatalities occur at the rate of 3.05 fatal accidents per 100 millions…

A: Let X be the number fatal accident Let rate =λ X~Pois(λ=3.05)

Q: Suppose a basketball player has a 84% of making his free throws.  Assume that the free throws are…

A: Given,sample size(n)=3p=P(misses free throws)=1-0.84=0.16A random variable X~Binomial(n=3 ,…

Q: The average number of field mice per acre in a wheat field is estimated to be 1.2. Find the…

A: Given, The average number of field mice per acre in a wheat field is estimated to be 1.2. The…

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.