Marcos took the EnggMath3 exam decided to guess on a 10-item multiple choice. Each problem has 5 choices. a. What is the probability that Marcos will get 7 of the questions correctly? b. What is the probability that Marcos will get at least 3 of the questions correctly?

Marcos took the EnggMath3 exam decided to guess on a 10-item multiple choice. Each problem has 5 choices. a. What is the probability that Marcos will get 7 of the questions correctly? b. What is the probability that Marcos will get at least 3 of the questions correctly?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: You took a 5-question multiple choice quiz with 4 choices for each question. If you guess at random…

A: Given information- A student takes a multiple-choice test that has 5 questions. Each question has…

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: Denni has 15 coins in his pocket, and 6 of them are toonies. He reaches into his pocket and pulls…

Q: You ask a friend to think of a number from 4 to 10. What is the probability that his number will be…

A: S= number from 4 to 10 = {4,5,6,7,8,9,10} A = number will be a multiple of three = {6,9}

Q: A student takes a 25 question multiple choice eam. Each question has 3 choices for each question.…

Q: A 7-question multiple-choice quiz has 5 possible answers for each question. Only one of the 5…

Q: The probability of being dealt a full house e from a standard deck of 52 cards e is 18 divided by…

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: What score is expected?

A: Here use binomial distribution

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: Suppose you have 10 tennis balls and you randomly pick some number of them. What is the probability…

A: Given the event that there are 10 tennis balls and one randomly pick some number of them.

Q: A student takes a 10-question multiple choice exam with three choices for each question and guesses…

A: Givensample size(n)=10p=13 (since 1 correct choice from 3 choices)Let "x" be the…

Q: ou randomly select one card from a 52-card deck. Find the probability of selecting a black two or a…

A: given data, select one card from 52 card deckhere total outcomes= 52 cards we have to find out the…

Q: If the probability that the Yankees will win a baseball game is 60%, find the probability that the…

A: The probability that Yankees will win a baseball game is 60%, that is PWinning=0.60.

Q: multiple choice exam, there are 5 questions and 4 choices for each question. You did not study, and…

A: n=5, p=1/4=0.25, X~Binominal(n=5, p=0.25) Let X be the number of correct question p be the…

Q: he winner of a raffle will receive a 21-foot outboard boat. If 4000 raffle tickets were sold and…

A: Given,total no.of raffle tickets=4000no.of purchased tickets=20

Q: A student takes a four-question, True or False quiz and guess at every answer. What is the…

Q: Assume that you guess on each question of a multiple choice test. There are 12 questions and each…

A: Given Data: The number of questions is: n=12 The possible answers to each question are: r=4 The…

Q: A quiz consists of 10 multiple-choice questions. Each question has 5 possible answers, only one of…

A: Given Data: The number of multiple-choice question is: n=10 The total number of possible answers…

Q: c. Find the probability that a patient randomly selected from the study had cancer OR was on the…

A: (c ) Obtain the probability that a patient randomly selected from the study had cancer OR was on…

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: Amy spins a spinner with equal sections numbered 1 through 5 and flips a fair coin. Which statement…

A: The objective of this question is to find the probability of two independent events occurring…

Q: Steve has 12 biscuits in a tin. There are 5 digestive and 7 chocolate biscuits. Steve takes two…

A: Given that, Total number of biscuits = 12 5 digestive biscuits and 7 chocolate biscuits We to find…

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: Twenty horses ran in the 2016 Kentucky Derby. The Trifecta bet involves picking the first three…

A: given data twenty horses participate in race, pick first 3 finishers in order no. of outcomes to…

Q: Julia sets up a passcode on her tablet, which allows only eight-digit codes. A spy sneaksa look at…

A: According to the provided data, the passcode allows only eight digit codes. As the fingerprints on…

Q: Suruchi has $1.64 worth of change in the bottom of her purse. If she reaches into her…

A: Given: Total number of coins = 12 Number of nickel = 3

Q: multiple-choice quiz has 10 questions, each will 4 possible answers. A student answers each…

Q: the cafeteria, the probability of picking a banana is 42% and the probability of picking an apple is…

A: We have given that P( picking an apple)=P(A)=(25%=0.25 P( picking an banana)=P(B)=42%=0.42

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: Jina won a charity raffle. Her prize will be randomly selected from the 9 prizes shown below. The…

A: 4 rings 3 cameras 2 headsets 9 total prizes

Q: Find the probability of winning a lottery with the following. Select the six winning number from…

A: Find the probability of winning a lottery with the following. Select the six winning number from…

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

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

Q: Kai and Paula are two of the five members of a singing group. Every week, the group picks two names…

A: Here Given There is 5 members group And 2 members are chosen for each week.

Q: If you have to answer 14 multiple choice questions, with each question having 7 choices, what is the…

A: The objective of this question is to find the probability of getting 6 or more correct answers out…

Q: In the Florida State Lottery, you can bet $1 by selecting 3 numbers from 0 through 9 inclusive. You…

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

A: Given,total no.of questions=10P(getting a correct option)=15P(getting a incorrect option)=45X=no.of…

Question

Marcos took the EnggMath3 exam decided to guess on a 10-item multiple choice. Each problem has 5 choices.

a. What is the probability that Marcos will get 7 of the questions correctly?

b. What is the probability that Marcos will get at least 3 of the questions correctly?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

A multiple-choice test consists of 5 questions, each question with 4 possible responses(A, B, C, D). A student guesses on each question. Find the probability that the student will guess correctly on at least 1 question.
A quiz consists of five multiple choice questions. Each question has four choices. A student guesses randomly on every question. What is the probability that the student answers at least four questions correctly?
A student takes a multiple choice test that has 10 questions. Each question has five choices. The student guesses randomly at each answer. Find the probability that more than four of them fail the test.
You took a test with 40 multiple choice questions. Each question had 5 choices. What is the probability that you get at least 28 questions correct if you guessed in all of them.
Mr. B bought a raffle ticket for $5,000 which has a 0.992 chance of winning $50,000. Find the EV.
Find the indicated probability. A multiple choice test has 12 questions each of which has 5 possible answers, only one of which is correct. If Judy, who forgot to study for the test, guesses on all questions, what is the probability that she will answer exactly 3 questions correctly?
The question out of the book is " Find the probability of drawing 4 aces. Hint: how many 5-card hands contain 4 aces?" I need to see the steps in solving, not just the answer. Thanks
A student randomly guesses at 7 multiple choice questions. Each question has five possible answers. What is the probability that the student gets exactly 3 correct answers?
Math test has 6 multiple choice questions with four choices with one correct answer each. if you just randomly guess on each of the 6 questions, what is the probability that you get exactly 5 questions correct?
On a 7 question multiple-choice test, where each question has 3 answers, what would be the probability of getting at least one question wrong? Give your answer as a fraction
At bedtime, you read three books to your kids, Walker, Michael, and Luke. Together, they have 32 books. If you decide to randomly choose three books, what is the probability that the three you choose will consist of each of their favorite books? Assume they have different favorites. Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.
On a 9 question multiple-choice test, where each question has 4 answers, what would be the probability of getting at least one question wrong?Give your answer as a fraction