An urn contains 15 balls: 4 red balls, 5 blue balls, and 6 green balls.(a) If three balls are drawn with replacement, what is the probability that all three balls are the samecolour?(b) If three balls are drawn without replacement, what is the probability that all three balls aredifferent colours?

GIVEN DATA,4-red balls5-blue balss6- green balls=15 total balls here 3 balls are selected at…

Answered: n urn contains 15 balls: 4 red balls, 5…

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

A class contains 30 students, Ten are Female (F) and Caviteno (C), 12 are male (M) and Caviteno; 6 are female and non-Caviteno; 2 are male and non-Caviteno A name is randomly selected from the class roster and it is female. What is the probability that the student is a Caviteno?
There are 8 yellow and 4 red balls inside an urn. A. Two balls are selected one by one with replacement. What is the probability that the first is yellowand the second is red? B. What is the probability that the first is yellow and the second is red if the two balls aredrawn without replacement?
c) An engineer had 12 red washers and 16 blue washers in his tools box. He required 6 washersto fix a repairs on request, if he selects the washers at random what is the probability that it willcontain 3 red and 3 blue washers?
A foreign student club lists as its members 3 Canadians, 2 Japanese, 4 Italians, and 3 Germans. If a committee of 4 is selected at random, find the probability that (a) all nationalities are represented; (b) all nationalities except the Italians are represented. (Final answer must be rounded off to 5 decimal places)
From a sack of fruit containing 10 oranges, 4 apples, and 6 bananas, a random sample of 8 pieces of fruit is selected. What is the probability that 4 oranges, 1 apple and 3 bananas are selected?
According to the question in the image, what is the correct answer to "What is the probability of this event?"?
B. A box contains 6 red balls 4 blue balls Draw two cards in a row If the draw is with return, what is the probability that 1. The two balls are blue 2. The two balls are of different colours
3. An urn contains 10 red, 15 blue and 25 green balls. (a) Eight balls are chosen without replacement. What is the probability exactly 4 of the chosen balls are green? (b) Now four balls are chosen from the urn without replacement. What is the probability the first chosen ball is red, the second chose ball is green, the third chosen ball is green and the fourth chosen ball is blue?
A red ball and 19 white balls are in a box. If two balls are drawn, without replacement, what is the probability of getting a red R ball on the first draw and a white W ball on the second? Pr(R first Pr(R first w second) = 20 W second) = 13 18 19 Pr(R first W second) = 20 9 Pr(R first W second) = 20 Pr(R first W second) = 1
There are 40 marbles in an urn: 8 are green and 32 are yellow. You reach into the urn and randomly select 4 marbles without replacement. What is the probability that at least one of the marbles is green?

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