if you make random guesses for 10 multiple choice test questions (each with 5 possible answers, what is the probability of getting at least one correct?

Q: Suppose that you sampled 2 CEOs with replacement instead. How many different samples are possible,…

A: Sampling is a process which is used in statistical analysis. In sampling a predetermined number of…

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

A: Binomial probability refers to the probability of exactly x successes on n repeated trials in an…

Q: There are twenty multiple-choice question on exam, each having responses a, b, c, d. Suppose that a…

A: Given that, there are 20 multiple-choice questions. n=20 The probability of success = 80% =0.80…

Q: if you flip a fair coin 10 times, what is the probability of getting all heads

A:

Q: If you are interested in the probability of two successes out of five trials, what is the correct…

A: Given  Let p be the probability p=0.30,  n=5. X~Bin(n=5,p=0.30) P(X=2)=?

Q: In a multiple choice test, each question is to be answered by selecting 1 out 5 choices, of which…

A: Formula : Binomial distribution is given by

Q: People were asked which fruit is their favorite: apples, oranges, or bananas. The results showed…

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Q: A quiz has 10 multiple choice questions. Each has 4-options, so a 25% chance of guessing correctly.…

A:

Q: if a true-false test with 5 queations is given, what is the probability of scoring (A) exactly 80%…

A: To calculate the probabilities of the required events under the given conditions

Q: A student takes a 20 question, multiple choice exam with five choices for each question and guesses…

A:

Q: The sum of the probabilities of all outcomes in a sample space is

A: Here We will use the Basic law of probability

Q: If you toss a fair coin seven times, what is the probability of getting all tails?

A:

Q: In a multiple-choice test, each question is to be answered by selecting 1 out of 3 choices of which…

A:

Q: If you make random guesses for 10 multiple-choice MCAT test questions (each with five possible…

A: Given: There are 10 multiple-choice MCAT test questions each with five possible answers.  Since each…

Q: In a Statistics test of 20 multiple choice questions with 5 choices with one correct answer each.…

A:

Q: In a test of four questions with five choices each, if all questions are randomly marked, what is…

A:

Q: If you make random guesses for 10 multiple choice questions each with 5 possible answers, what is…

A: Solution: Let X be the number of correct answers and n be the sample number of questions.

Q: Explain why a random phenomenon with two possible outcomes does not necessarily have 0.5 as the…

A: Probability is the measure of likelihood that an event will occur in a random expriment. Probability…

Q: A test consists of ten multiple choice questions each with five possible answers, of which only one…

A: Total number of questions=10 number of possible answers=5 Probability of guessing correct answer for…

Q: If you make random guesses for 5 multiple choice SAT questions (each with 5 possible answers), what…

A: Given data: 5 multiple choice SAT questions.

Q: For fraternal twins, the odds in favor of having children that are twins are 1/16. Based upon this…

A: The odds in favor of event A is P(A)/(1 - P(A)).

Q: What is the process for solving the following question?   Suppose 57% of the students at UNCG are…

A: Binomial distribution: The binomial distribution gives the probability of number of successes out of…

Q: If 9 out of 1501 people have a certain genetic defect, what is the probability of selecting three…

A:

Q: Suppose you take a 20 question multiple choice test, where each question has four choices. You guess…

A: Givensample size(n)=20each question has four…

Q: A multiple-choice test has 4 choices, one of which is a correct answer. If a student just guesses…

A: We have given that Probability of guessing correct answer p = 1/4 =  number of trial (n) = 3 Since…

Q: if you roll a pair of fair dice, what is the probability of getting a sum of 1

A: Roll a pair of fair dice, Sample space = S= (1,1) (1,2) (1,3) (1,4) (1,5)…

Q: What is the probability of Selecting an all male five person jury from a pool of 10 men and 10 women…

A: Number of men=10  Number of female=10 We want to find the probability of selecting an all male five…

Q: A test consists of 10 multiple choice questions, each with five possible answers, one of which is…

A: Obtain the probability that that the student will get at most 8 answers correctly. The probability…

Q: Suppose the probability of success is p=31%. What is the probability of 7 successes in 8 trials?

A: Let x follows binomial distribution with parameters n = 8 and p = 0.31   The pdf of binomial…

Q: An experiment consists of flipping a fair coin 3 times and noting heads or tails on each flip. What…

A:

Q: On a 7 question multiple-choice test, where each question has 5 answers, what would be the…

A: Let p be the probability of getting a wrong question. Then p = 4/5 Let X denote the number of wrong…

Q: If your playlist has 7 rap songs, 8 hip hop songs, and 3 folk songs on it and you select one song at…

A: You have posted multiple questions. As per the instruction, we will be answering only one question.…

Q: Suppose the probability of success is p=31%p=31%. What is the probability of 77 successes in 88…

A: Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial…

Q: if you roll a pair of fair dice, what is the probability of getting a sum of 12?

A: Sample space: The set of all possible outcomes of a probability experiment is called sample space of…

Q: You are taking a multiple choice test that you did not study for. If there are 9 questions, each…

A:

Q: On a multiple-choice quiz with four possible answers for each question, what is the probability of…

A: It is given that the On a multiple-choice quiz with 4 possible answers for each question. It means,…

Q: If an unprepared student guess for 10 true-false questions, what is the probability they will get…

A:

Q: 10 question multiple-choice test, where each question has 5 answers, what would be the probability…

A: Given that  Number of questions (n)  = 10 Each question has 5 options and only one option is…

Q: what is the probability of randomly selecting an odd number from the numbers 1-15?

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Q: An experiment consists of dealing 7 cards from a standard 52-card deck. What is the probability of…

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Q: A colony of laboratory rats contain 16 white rats and 9 spotted rats.What is the probability of…

A: Introduction:Probability of an event is the number of outcomes favorable to the event, divided by…

Q: You select 7 statistics students at random, with replacement. What is the probability that exactly 3…

A: here given, total students =60 31 sleep on their side 20 sleep on their stomach 9 sleep on their…

Q: An exam has 16 multiple choice questions with four choices with one correct answer each. If we just…

A: We have to find correct answer..

Q: If a student is guessing randomly on a multiple choice test with 4 possible responses per question,…

A: Given: X=Guessing correct answer of multiple choice question Number of questions n=16 Number of…

Q: If a person takes a five questions true-false, what is the probability of the event that the score…

A: For the given statement

Q: A quick quiz consists of 5 multiple choice problems, each of which has 4 answers, only one of which…

A: We want to find the  (A) probability that all 5 are incorrect answer. (B) probability that all 5 are…

Q: If you make random guesses for 20 multiple choice test questions each with four possible answers,…

A: The random variable X is defined as the numbers of correct answers. There are four answer choices…

Q: If you have a sample of 100 patients at a hospital and 20 of them have the flu, what is the…

A: Given data: The total numbers of patients are n=100. The numbers of patients who have flu are f=20.…

Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.