A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
A bag contains 10 beads. Six are black and 4 are white. ( i ) Three beads are selected from this bag at random, without replacement. What is the probability that precisely two of the beads are white?
( ii ) Three beads are selected from this bag, one at a time. After each bead is selected, its color is noted and it is replaced in the bag. What is the probability that precisely two of the beads are white?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps with 1 images
Knowledge Booster
Similar questions
- Q4. There are two urns. The first urn contains 3 white and 7 black balls; the second contains 6 white and 4 black balls. One ball is taken out of the first urn at random and and put it into the second urn, and then one ball was taken out of the second urn. (a) Find the probability that the removed ball is white. (b) It is known that the ball taken from the second urn was white. Find the probability that a white ball was transferred from the first urn to the second.arrow_forwardThe composition of the Senate of the 111th Congress was: 41 Republicans, 2 Independents, and 57Democrats. If 3 senators are selected at random, what is the probability that one of each party wasarrow_forwardYou own 21 CDs. You want to randomly arrange 8 of them in a CD rack. What is the probability that the rack ends up in alphabetical order? The probability that the CDs are in alphabetical order isarrow_forward
- Eli has a jar full of marbles. In the jar there are 1818 blue marbles, 1010 red marbles and 1111 purple marbles. a. She selects a marble at random from the jar. She does not replace the marble. She selects a second marble from the jar. What is the probability that the second marble is red given that the 1st marble was also red? What is the correct interpretation of this question?arrow_forward5B. John packs four t shirts for a trip to the beach. If he owns nine t shirts, four of which are black, and he randomly picks which four to pack, what is the probability that he packs the four black ones?arrow_forwardThree Bananas and three oranges are kept in a box. If two fruits are chosen at random, Find the probability that one is Banana and another one is orange?arrow_forward
- Michael is to randomly pick between two jars that contain coins. The first jar contains 2 pennies, 3 nickels, and 5 dimes. The second jar contains 7 pennies, 3 nickels, and 4 dimes. After a jar is selected, a coin is then picked from that jar. If the selected coin is a nickel, what is the probability that it came from the second jar?arrow_forwardSuppose that you have 10 coins: 3 dimes, 3 quarters, and 4 nickels. Two coins are selected at random. What is the probability that you choose exactly 30 coins?arrow_forwardIf there are 23 people in a room, and 5 of them are wearing blue shirts, what is the probability that a randomly selected person in the room is wearing a blue shirt?arrow_forward
- A committee of three people is to be randomly selected from a group of 20 men and 17 women. What is the probability that all three people will be women?arrow_forwardIn a class there are 18 juniors and 10 seniors; 6 of the seniors are females, and 12 of the juniors are males. If a student is selected at random, find the probability of selecting the following A junior or a female A junior or a senior A junior who is a femalearrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- A First Course in Probability (10th Edition)ProbabilityISBN:9780134753119Author:Sheldon RossPublisher:PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:9780134753119
Author:Sheldon Ross
Publisher:PEARSON