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A quiz has 6 multiple choice questions each with 4 choices

Each question has four answer choices. Username: Password: Register in one easy step! Reset your password if you forgot it. Algebra: Combinatorics and Permutations Section. Solvers Solvers. Lessons Lessons.

a quiz has 6 multiple choice questions each with 4 choices

Answers archive Answers. What is the probability a student randomly guesses the answers and gets exactly six questions correct? Is getting exactly 10 questions correct the same probability as getting exactly zero correct? Describe the steps needed to calculate the probability of getting at least six questions correct if the student randomly guesses.

You do not need to calculate this probability! It would be greatly appreciated if you could show work as to how to solve these, thanks! Binomial probability: The probability of getting exactly x successes out of n trials, when the probability of getting 1 success in 1 trial is p is given by the formula.

Notice that is also written as nCx or C n,x or the number of combinations of n things taken x at a time. Put in numbers for n,p, and x. A multiple choice test has 10 questions. Although both are very unlikely, it is 3 times as likely to guess an answer incorrectly than to guess it correctly.

So it is more likely to guess them all incorrectly than all correctly. However, in a true-false test, they would be the same. You would do these steps: 1. Calculate the probability of getting exactly 6 correct.

Calculate the probability of getting exactly 7 correct.If we can't tunnel through the Earth, how do we know what's at its center? A test has 5 multiple choice questions each with 4 choices what is the probability of guessing exactly 3 out of 5 right? All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.

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Wiki User Related Questions Asked in Probability A multiple choice question has has 5 choices What is the probability of guessing it correctly? Asked in Probability A test has 2 multiple choice questions each with 5 choices what is the probability of guessing the correct answers to both questions?

You have a 4 percent chance of guessing both answers correctly assuming there is only one correct answer to each question and that you may only answer once per question.

Asked in Probability What is the probability of guessing the correct answer to a multiple choice question if there are five choices? Asked in Statistics, Probability What is the probability of getting five questions correct on a 20 question multiple choice test? The answer depends on the number of choices available for each question. Asked in Probability How do you find the probability of guessing exactly three four choice multiple choice questions out of five?

The probability of guessing any one is 1 out of 4, or 0. Assume that the choices are made independently. Asked in Math and Arithmetic, Statistics, Probability A multiple choice question has 5 choices if you gets 2 questions what is the probability of getting both correct? Well they are independent events so it is the probability of getting a correct answer multiplied by the probability of getting a correct answer on the second question.

Red cells are made in the? Asked in Statistics, Computer Memory A test has 2 multiple choice questions each with 3 choices what is the probanility of guessing the correct answers to both questions? The probability of getting both answers correct is one chance in nine 0. Asked in All India Engineering Entrance Examination AIEEEProbability A student takes a question multiple choice exam with five choices for each question and guesses on each question Find the probability of guessing at least 15 out of 20 correctly?

My math sucks - I probably got that wrong. Asked in Math and Arithmetic, Statistics, Probability In a multiple choice test what is the probability of getting two answers correct?

That depends on how many questions there are, how many choices are listed for each question, and whether any obviously-stupid answers are included among the choices.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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I'm currently stuck on this question: A multiple choice test consists of 8 questions each with 4 choices. A student guesses the answers by choosing an answer at random.

We can't use binomcdf or anything like that to find the answer. The simplest way to do a is to find the probability of answering 0 or only 1 correctly, then subtracting that from 1. The probability any one of the seven is correct and the other 3 incorrect is that times 8, 0. The probability that either all 8 are incorrect or one is correct and the other 7 are incorrect is 0.

The probability of answer 2 or more correctly is 1- 0. Sign up to join this community. The best answers are voted up and rise to the top.

Home Questions Tags Users Unanswered. Probability of getting at least 2 multiple choice questions answered correctly Ask Question. Asked 4 years, 6 months ago. Active 4 years, 6 months ago.

Determine on average, in the long run, how many points the student will score?

Viewed 9k times. We can't use binomcdf or anything like that to find the answer a Compute the probability that the student answers 2 or more correctly. Lauren Burke Lauren Burke 4 4 silver badges 12 12 bronze badges.

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a quiz has 6 multiple choice questions each with 4 choices

The Overflow Blog. Q2 Community Roadmap. The Overflow How many jobs can be done at home? Featured on Meta. Community and Moderator guidelines for escalating issues via new response….Did you know they signed Eric Decker who has scored double-digit touchdowns in three of the last five seasons. What does all this mean. It means a Mariota vs Winston Super Bowl is forthcoming. Again, lots of value here. He tossed 28 touchdowns against only 2 interceptions, which was good enough to finish second behind Matt Ryan.

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For example, Bell pointed out that Donaghy refereed 13 games during the 2006-07 season in which the margin fell within one point of the spread. Suchanek showed that this was what would be expected from random chance. But when asked by Suchanek to disclose the list of those games, Bell declined. You guys would rather a sober recitation of the facts. He encouraged first-time visitors to check out their many offers: Pregame Wire, Pregame Buzz, Free Picks from Pro Bettors, FreePicksByEmail, and Sportsbook Spy.

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a quiz has 6 multiple choice questions each with 4 choices

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Brief tutorials and help for novices and database developers. Examples and solutions to implement. Bugs and traps to avoid. Sample code and utilities to download. This is literally an FAQ. It has grown in response to the most frequently asked questions in Access newsgroups, for 16 years. Each page explains the most efficient solution that works completely within Access, as simply as possible.

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