There are 4 red, 2 white, and 2 blue marbles In an urn. Two marbles are slected at random without replacement. What is the probability that neither is red, given that neither is white?
There are 4 red, 2 white, and 2 blue marbles In an urn. Two marbles are slected at random without replacement. What is the probability that neither is red, given that neither is white?
The two-way table below contains the outcomes of each of the Lakers' regular season games and whether or not the games went into overtime. ...
The two-way table below contains the outcomes of each of the Lakers' regular season games and whether or not the games went into overtime. ...
Three members from each team's twenty player hockey team roster are randomly selected for drug testing at the beginning of a tournament. The coach of a low-seeded team complains when none of the starters...
An unfair coin with pr[H]=2/3 is flipped. If the flip results in a head, then a marble is selected from an urn containing 6 red, 9 white, and 5 blue marbles. If the flip results in a tail then a marble...
11% of all widgets are defective an inspector randomly sample 14 from a box. What is the probability of finding at least 2 defective widgets?
There are 4 red, 4 white, and 4 blue marbles in an urn. Two marbles are selected at random without replacement. What is the probability that neither is red, given that neither is white?
A pair of fair dice is rolled and the sum of the numbers is noted. Determine the probability that one die resulted in a given 5 that the sum is 8.
The probability of a snowstorm on Thanksgiving is 0.22, and the probability of a snowstorm on Christmas is 0.65. Assuming that these two events are independent. What is the probability...
A committee of four people is to be formed from 6 lawyers and 8 teachers. Find the probability that two are teachers and two are lawyers. Round to the nearest tenth of a percent. A. 42.0% B...
A test for colorblindness was conducted on 1,023 students in a high school. The results based on genders. Not Colorblind Female: 474 Male: 515 Colorblind Female:...
An unfair coin with Pr[H]=0.2 is flipped. If the flip results in heads, a student is selected at random from a class of 12 boys and 15 girls. Otherwise, a student from a different class containing...
Let E and F be events such that Pr[E]=0.5, Pr[F]= 0.53, and Pr[E intersect F]=0.24. Find. Pr(E l F complement) Pr(F l E complement)
I think I need to use conditional probability to solve the problem. I can get the answer the long way, but I don't know how to show my work.
You ask your roommate to mail a letter for you. Suppose there is a 0.16 probability your roommate will forget to mail it. Should your roommate mail your letter, there is a 0.9 probability...
3% of all widgets are defective. An inspector randomly samples 15 from a box. What is the probability of finding exactly two defective widgets? What is the probability...
An instructor gives his class a set of 13 problems with the information that the next quiz will consist of a random selection of 5 of them. If a student has figured out how to do 11 of the problems,...
Assume that events A and B can only occur during the first stage of an experiment, and events C and D can only occur during the second stage of the experiment. Pr[A]= 0.4, Pr[C l A]=0.48, and Pr=[D...
about independent events E and F in a sample space S, but assume that Pr[E]=0.45 and Pr[F]=0.3. Compute the following conditional probabilities: (1) Pr[E′|F] (2) Pr[E...
An NBA player makes a successful free-throw 84% of the time. If he takes 7 shots, find the probability that he will make: a. exactly 5 shots b...