You are taking a 10 question multiple-choice test. If each question has four choices and you guess on each question, what is the probability of getting exactly 7 questions correct? a. 0.3250% b. 0.3090% c. 0.3520% d. 0.3900%

Q: In the United States, 40% of the population has brown eyes.  If 15 people are randomly chosen, what…

A: Given that  n=15, p=40%=0.40 X~Binomial(n=15, p=0.40) X be the number of the population has brown…

Q: During the grand opening of an electronics store, any customer has a 9% chance of winning a free…

A: From the information, any customer has a 9% chance of winning a free laptop .

Q: in a school survey 35% of students rode the bus to school. what are the odds of a student riding the…

A:

Q: Coronary bypass surgery has a 95% success rate. If 2 people have coronary bypass surgery, find the…

A:

Q: On a 6 question multiple-choice test, where each question has 5 answers, what would be the…

A: From the provided information, Number of questions (n) = 6 Each question has 5 answers.

Q: Use the spinner to find the probability of each outcome. P(red) = P(not blue) =

A: Solution ) Number of possible outcome  = red , green , yellow , purple , blue  Hence n(s) = 5 And n…

Q: A quick quiz consists of a multiple-choice question with 5 possible answers followed by a true/false…

A: Given dataMultiple choice questions with 5 possible answers followed by a true and false5 possible…

Q: A poll showed that 50.9% of Americans say they believe that life exists elsewhere in the galaxy.…

A: The given percentage of Americans who are said to believe that life exists elsewhere in the galaxy…

Q: On a 9 question multiple-choice test, where each question has 4 answers, what would be the…

A: Obtain the probability of getting at least one question wrong.   The probability of getting at…

Q: A poll showed that 68.5% of Americans say they believe that Marilyn Monroe had an affair with JFK.…

A: Given information- Percentage of Americans believe that Marilyn Monroe had an affair with JFK =…

Q: The lacrosse team has a 55% chance of winning its upcoming games. Find the probability of them…

A:

Q: You are taking a multiple-choice quiz that consists of five questions. Each question has four…

A: Let X be the number of correct answers which follows binomial distribution with sample size 5, and…

Q: Suppose that 44% of people have dogs. If two people are randomly chosen, what is the probability…

A: It is given that, 44% of people have dogs. It means, probability that a people have dogs= p = 0.44…

Q: 31 of 48% is what?

A: 31 of 48%

Q: An insurance company sold 2,500 policies ($100,000 payout value) this year. The probability of death…

A: The number of deaths that would result in breaking even means that the expected mean is zero.…

Q: If the probability of a person losing on a scratch-off lottery ticket is 0.625, the odds of losing…

A: given data p(losing) = p = 0.625 ∴odds of losing =?

Q: On a 10 question multiple-choice test, where each question has 3 answers, what would be the…

A: Given : Number of sample = n = 10 Probability of right question = p = 1/3 = 0.3 Probability of wrong…

Q: Allie plays on the varsity basketball team and makes 79% of her free throws. If she takes 12 shots,…

A: Given : p = 0.79 q = 1 - p = 1 - 0.79 = 0.21 n = 12 we have find P(x = 8) here, x follow a binomial…

Q: The probability of an event is 27%. What are the odds of that event?

A: Given that the probability of an event is = 27%= 0.27  Let us denote the event by E So, P(E)=0.27

Q: Solve the problem. An exit poll during a recent election revealed that 55% of those voting were…

A: Independent Events:   Any two events A and B are said to independent if the occurrence of the event…

Q: In a mathematics competition, there are 10 multiple-choice questions. Each question has one correct…

A: The binomial probability formula is given by:P(X=k)=(nk)⋅pk⋅(1−p)n−kwhere:(nk) is the number of ways…

Q: A student takes a true-false test but did not study and randomly guesses each answer. There are 20…

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Q: On a 6 question multiple-choice test, where each question has 2 answers, what would be the…

A: GivenEach question has 2 answersso, p=12=0.5n=6x~Binomial(n=6,p=0.5)P(X=x)=(nx)×px×(1-p)n-x    ;…

Q: You are taking a multiple-choice quiz that consists of five questions. Each question has four…

A: In n independent Bernoulli trials, a discrete random variable having two possible outcomes with…

Q: You randomly select one card from a​ 52-card deck. Find the probability of selecting the king of…

A: It is known that Number of cards in a deck = 52 Number of king of diamonds = 1 Number of two of…

Q: Coronary bypass surgery has a 95% success rate. If four people have coronary bypass surgery, find…

A: Given information- Given problem is of binomial distribution. Let x is a discrete random variable…

Q: On a 9 question multiple-choice test, where each question has 3 answers, what would be the…

A:

Q: Suppose that 66% of people have dogs. If two people are randomly chosen, what is the probability…

A: 66% of people have dogs. Sample size = 2P(both have a dog) = ?

Q: You randomly select one card from a 52-card deck. Find the probability of selecting an ace or a 9. O…

A: We will find out the required value.

Q: You are taking a multiple-choice quiz that consists of 10 questions. Each question has 5 possible…

A:

Q: An insurance company claims the probability of surviving a certain type of cancer is 85%. What are…

A: The objective of this question is to convert the given probability into odds. Probability and odds…

Q: On an 8-question multiple-choice test, where each question has two (2) answers, what would be the…

A: Probability for at least 1 written as P(X ≥ 1) = 1 - P(X <1) I am solving below fir better…