A bag contains 8 red marbles, 5 white marbles, and 7 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red? The probability that all the marbles are red is ...... What is the probability that exactly two of the marbles are red? The probability that exactly two of the marbles are red is .... What is the probability that none of the marbles are red? The probability of picking no red marbles is.....

A bag contains 8 red marbles, 5 white marbles, and 7 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red? The probability that all the marbles are red is ...... What is the probability that exactly two of the marbles are red? The probability that exactly two of the marbles are red is .... What is the probability that none of the marbles are red? The probability of picking no red marbles is.....

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

the following eight people are in the room: two democratic men, three republican men, four democratic women, and five republican women. If you select one person at a ramdom from this room, what is the probability that you will select a woman or democrat?
Of 100 students, 22 can speak French, 18 can speak German, and 4 can speak both French and German. If a student is picked at random, what is the probability that he or she can speak French or German? (Enter your probability as a fraction.)
A pet store has 12 puppies, including 4 poodles, 4 terriers, and 4 retrievers. If Rebecka and Aaron, in that order, each select one puppy at random without replacement, find the probability that Aaron selects a retriever, given that Rebecka selects a poodle. The probability is (Type an integer or a fraction.)
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?
Of 26 students in a classroom, there are 3 females that are juniors and 8 females that are seniors. There are 6 males that are juniors and 9 males that are seniors.The teacher selects a student at random. What is the probability that the student selected is neither a female nor a junior?
There are five women and four men on a committee. A subcommittee of four people is selected at random. What is the probability that all four people selected are men, given that all four are the same gender?
A bag contains 10 red marbles, 10 white marbles, and 7 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that exactly two of the marbles are red?
If a sack contains eight blue marbles and ten red marbles, and you randomly select four, what is the probability that exactly two of your four marbles are blue?
A bag contains 7 red marbles, 5 white marbles, and 10 blue marbles. You draw 3 marbles out at random, without replacement. What is the probability that exactly two of the marbles are red?
A deck consists of playing cards that can have one of 16 suits and one of 5 ranks. A hand is a set of five cards randomly selected from the deck. How many hands are a four of a kind (four cards with the same rank but different suits, and a fifth card that is a different rank from the other four)? What is the probability of the hand being a four of a kind?
A high school class consists of 6 seniors, 10 juniors, 11 sophomores, and 5 freshmen. Exactly 2 of the juniors are male, and exactly 5 of the sophomores are female. If two students are randomly selected from this class, what is the probability that the pair consists of a female junior and a male sophomore?
You and two best friends of yours are invited to a party of 10 people (including the host). a. Suppose the 10 people are randomly seated along the dining table. What's the probability that you and your best friends happen to sit next to each other, i.e., no one sits in between any of the three of you? b. After the dinner, four people are drawn randomly to play video games. What's the probability that at least one of your best friends are picked?