Richard has just been given a 4 question multiple choice question quiz in his history class.  Each question has five answers, of which only one is correct. Since Richard has not attended class recently, he doesn't know any of the answers.  Assuming that Richard guesses on all four questions, find the indicated probabilities. ( round your anwers to three decimal places.) A) What is the probability that he will answer all questions correctly? B) What is the probability that he will answer all questions incorrectly? C) What is the probability that he will answer at least one of the questions correctly? compute this probability two ways.  First use the rule for mutually exclusive events and the probabilities shown in the binomial probability distribution table.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
icon
Related questions
Topic Video
Question
100%

Richard has just been given a 4 question multiple choice question quiz in his history class.  Each question has five answers, of which only one is correct. Since Richard has not attended class recently, he doesn't know any of the answers.  Assuming that Richard guesses on all four questions, find the indicated probabilities. ( round your anwers to three decimal places.)

A) What is the probability that he will answer all questions correctly?

B) What is the probability that he will answer all questions incorrectly?

C) What is the probability that he will answer at least one of the questions correctly? compute this probability two ways.  First use the rule for mutually exclusive events and the probabilities shown in the binomial probability distribution table.

 

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 4 images

Blurred answer
Knowledge Booster
Discrete Probability Distributions
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL