The probability that a student knows the correct answer to a multiplechoice question is 2/3. If the student does not know the answer, then thestudent guesses the answer. The probability of the guessed answer beingcorrect is 1/4.Given that the student has answered the question correctly,the conditional probability that the student knows the correct answer is8/93/42/35/6

Let us define some events A : student knows the correct answer. B : student does not know the…

Answered: The probability that a student knows…

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...

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Similar questions

If the probability that a vaccine you took will protect you from getting the flu is 0.962, what is the probability that you will get the flu? Probability that you will get the flu =
Suppose you have an .95 probability of making a single free throw and to make the basket ball team you must be able to make 5 out of 5 free throws. How likely is it that you will make the team? Give the probability
Find the probability that either event A or B occurs if the chance of A occurring is 0.5,the chances of B occurring is 0.3, and events A and B are independent.
Suppose that the probability that a child living in an urban area in the United States is obese is 20%. If a social worker sees 15 children living in urban areas, what is the probability that 5 are obese? Enter response as .xxxx
the probability that twins are is 0.5 identical twins are always they same while non identical twins are the same sex with probability 0.7 what is the probability that twin boys are identical twins
The probability that the first record of a singing group will be a hit is 0.48. If their first record is a hit, so are all their subsequent records. If their first record is not a hit, the probability of their second and all subsequent ones being hits is 0.24. If the first two records are not hits, the probability that the third is a hit is 0.12. Find the probability that a group has exactly 2 hits in their first three records. P(exactly 2 hits in first three records) = (Simplify your answer. Type an integer or a decimal. Round to 6 places.)
Find the probability that when a couple has two children, atleast one of them is a girl (assume boys and girls are equally likely) simplify answer
Ajar contains 3 pennies, 7 nickels and 4 dimes. A child selects 2 coins at random withoutreplacement from the jar. Let X represent the amount in cents of the selected coins.Round your answers to 3 decimal places.Find the probability X = 10.Find the probability X = 11.
The probability of finding a gold card is 0.03. What is the probability that 2 out of 25 randomly selected cards are a gold card?

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