2.5-3. A professor gave her students six essay questions from which she will select three for a test. A student has time to study for only three of these questions. What is the probability that, of the questions studied, a. at least one is selected for the test? b. all three are selected? c. exactly two are selected?

2.5-3. A professor gave her students six essay questions from which she will select three for a test. A student has time to study for only three of these questions. What is the probability that, of the questions studied, a. at least one is selected for the test? b. all three are selected? c. exactly two are selected?

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section: Chapter Questions

Problem 40CT: There are 10 applicants for three sales positions at a department store. All of the applicants are...

See similar textbooks

Similar questions

In how many different ways can two letters be chosen from the letters A, B, C, D, E, F, and G? (The order of the two letters is not important.)
In how many ways can 10 teenagers be seated at a round table if 2 girls wish to sit with their boyfriends.
In how many ways can 5 people stand in a line if one person demands to be first?
There are 10 applicants for three sales positions at a department store. All of the applicants are qualified. In how many ways can the department store fill the three positions?
If P(AB)=0.7, is it possible that P(BA)=0.6? Explain
Over the past year, John has purchased 30 books. a In how many ways can he pick four of these books and arrange them, in order, on his nightstand bookshelf? b In how many ways can he choose four of these books to take with him on his vacation at the shore?
How many different signals can be sent, when three flags are used, if two of the 9 flags are missing?
A family consisting of 2 parents and 3 children is to pose for a picture with 2 family members in the front and 3 in the back a. How many arrangements are possible with no restrictions? b. How many arrangements are possible if the parents must sit in the front? C. How many arrangements are possible if the parents must be next to each other?
How many permutations of the letters W, X, Y, and Z are possible?