An urn holds 4 red, 3 blue, and 2 green marbles. Three marbles are selected, altogether, without replacement. Let Y be the number of red marbles obtained. What is the expectation of Y? Give an answer in decimal format and correct to at least 4 decimal place accuracy.

An urn holds 4 red, 3 blue, and 2 green marbles. Three marbles are selected, altogether, without replacement. Let Y be the number of red marbles obtained. What is the expectation of Y? Give an answer in decimal format and correct to at least 4 decimal place accuracy.

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

Similar questions

Oliver has a bag that contains pineapple chews, lemon chews, and peach chews. He performs an experiment. Oliver randomly removes a chew from the bag, records the result, and returns the chew to the bag. Oliver performs the experiment 23 times. The results are shown below: A pineapple chew was selected 17 times. A lemon chew was selected 4 times. A peach chew was selected 2 times. Based on these results, express the probability that the next chew Oliver removes from the bag will be peach chew as a percent to the nearest whole number.
Assume that n = 10, and p = 6/8. Find the probability of at least 1 success and at least 3 failures.
An urn contains 3 white balls and 7 red balls. A second urn contains 8 white balls and 2 red balls. An urn is selected, and a ball is randomly drawn from the selected urn. The probability of selecting the first urn is 0.8. If the ball is white, find the probability that the second urn was selected. (Round your answer to three decimal places.)
Find values of n, x, p and q. DO NOT SOLVE based on American Chemicsl Society, there is a 0.9 probability that in the United States, a randomly selected dollar bill is tainted with traces of cocaine. Assume 8 dollar bills are randomly selected. Find the probability that at least 5 of them have traces of cocaine
Why is it that the P(3set and V wins)=(0.09+0.0675)? What is the formula of P(3set and V wins)?
Use the following information to answer the next question. A committee of 3 people is to be randomly selected from a group of 8 people, including Sarah. 12. Determine the probability that Sarah is selected to be on the three-person committee.
A pair of dice is rolled, and the sum of the faces is obtained. Find the probability that the sum is a multiple of 3.
An urn contains 10 red marbles, 7 white marbles, and 8 blue marbles marbles. A child randomly selects three (without replacement) from the urn. Round to four decimal places. a. Find the probability all three marbles are the same color. b. Find the probability that none of the three marbles are white.