A true-false quiz has 12 questions. A student guesses all the answers. Find the probability of the following outcomes. (For each answer, enter a number. Round your answers to four decimal places.) (a) getting 6 correct (b) getting at least 6 correct (c) getting no more than two correct

A true-false quiz has 12 questions. A student guesses all the answers. Find the probability of the following outcomes. (For each answer, enter a number. Round your answers to four decimal places.) (a) getting 6 correct (b) getting at least 6 correct (c) getting no more than two correct

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: Find the Indicaled PA or b)= (Simplify your answer. Type an integer or a decimal.) If P(A and B) =…

A: Given P(A and B)=0.4, P(A)=0.6, and P(B)=0.5, find P(A or B)

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

Q: In a carnival game, you roll a number cube and flip a coin. The sides of the die contain the numbers…

A: Introduction: It is required to find the probability of winning the game by scoring 10 or more…

Q: Find the probability of randomly selecting a student who spent the money, given that the student was…

Q: Use the formula for the probability of the complement of an event.Two dice are tossed. What is the…

A: Obtain the probability of not getting a sum of 6 by tossing a two dice. Probability: The ratio of…

Q: You are taking a multiple choice quiz. There are 10 questions. Each question has 4 possible answer…

A: Given : Probability of success,p =1/4 = 0.25 Probability of failure,q=(1- 0.25)= 0.75…

Q: #LP: A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball from…

A: 5 red ballsx blue balls__________5+x total ballsP(blue) = 3P(red)x = ?

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

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: Calvin makes 65% of the penalty kicks he takes. He is practicing penalty kicks with his friend…

A: From the provided information, Sample size (n) = 10 Calvin makes 65% of the penalty kicks he takes…

Q: You are hosting a party with 6 coworkers . Each coworker will be getting a beer as a drink. The…

A: It is given that the number of co-workers or friends is 6. The probability of any co-worker asks for…

Q: Find the probability of choosing an "a" from the word "preparation". O 20% O 18.2% O 5.5% Ⓒ2%

A: Total words in "preparation"=11 Total a in given word=2

Q: Through ten games of basketball this season, Samuel has made 90% of his free-throws. Which word or…

A: Probability is a branch of mathematics that deals with calculating the likelihood of a given event's…

Q: Use the multinomial formula and find the probabilities for each. Round your answers to at least…

A: Given information,n = 6, X1 = 1, X2 = 2, X3 = 3, P1 = 0.4, P2 = 0.3, P3 = 0.3Using formula…

Q: Decide which of these numbers could not possibly be probabilities. Explain your answers.…

A: Rules of Probability:The probability of an event must lie between 0 and 1, inclusive.The sum of…

Q: John runs a computer software store. Yesterday he counted 127 people who walked by his store, 58 of…

A: Given Information: Number of people who walked by his store = 127 Ou of which 58 came in the store.…

Q: Write the answer as a decimal, accurate to 4 decimal places. If a bag contains 5 green balls, 5 blue…

A: According to the given information in this question We need to find that the probability that the…

Q: Give the probability in decimal form. The campus vets club is having a raffle and is selling 1500…

A: The total number of selling tickets=1500 tickets The number of tickets bought by the people on the…

Q: Joan and Cindy are on the same bowling league. The probability that Joan scores more than 150 is…

A: Given that: Probability that Joan scores more than 150 = 0.4 Probability that Cindy scores more than…

Question

A true-false quiz has 12 questions. A student guesses all the answers. Find the probability of the following outcomes. (For each answer, enter a number. Round your answers to four decimal places.)

(a)

getting 6 correct

(b)

getting at least 6 correct

(c)

getting no more than two correct

Expert Solution

Step 1

Given that n =12 . p = 1/2

Find

(a)

getting 6 correct

(b)

getting at least 6 correct

(c)

getting no more than two correct

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

find the probability of randomly selecting a student who spent the money, given that the student was given a $1 bill. purchased gum kept the money students given 4 quarters 25 11 students given $1 bill 15 34
Six questions are in a multiple-choice quiz. Each question has 5 possible answers. A student guesses at each question. Find the probability that the student has 4 correct answers. Find the probability that the student passes (earns at least 50%) What is the student's expected number of correct answers?
Haroldo, Xerxes, Regina, Shaindel, Murray, and Georgia are invited to a dinner party. They arrive in a random order and all arrive at different times. What is the probability that Xeres arrives first AND Regina arrives last? Answer in decimal form. Round to 3 decimal places as needed.
John runs a computer software store. Yesterday he counted 127 people who walked by his store, 58 of whom came into the store. Of the 58, only 25 bought something in the store. For each of the following questions, answer using probability notation. Estimate the probability that a person who walks by the store will enter the store.
Decide which of these numbers could not possibly be probabilities. Explain your answers. a. 00.47 b. −0.047 c. 3.5 d. 1/3.5
Place the probability of spinning each number on the probability line below. nt 2. 3 1/2 John bought a cell phone for $99 and the 7% sales tax was added at the register. John gave the cashier six $20 bills, how much change should he receive?
In Pennsylvania Cash 5 lottery, winning the top prize requires that you select the correct five different numbers between 1 and 43 (in any order). winning the top prize? Show all your calculations. Express the answer as a fraction. What is the probability of
Set up the problem as if it were to be solved, but do not solve. Assume that this selection is done without replacement. Determine the probability of being dealt 2 nines from a standard deck of 52 cards when 2 cards are dealt. P(2 nines) =