Question

An urn contains 7 balls: 2 white, 3 green, and 2 red. We draw 3 balls...

An urn contains 7 balls: 2 white, 3 green, and 2 red.

  1. We draw 3 balls without replacement. Find the probability that we don’t see all three colors.Probability =
  2. We draw 3 balls with replacement. Find the probability that we don’t see all three colors.Probability =

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
An urn contains 8 balls, 3 white, 3 green and 2 red. a) We draw 3...
An urn contains 8 balls, 3 white, 3 green and 2 red. a) We draw 3 balls without replacement. Find the probability that we don't see all three colors. b) We draw 3 balls with replacement. Find the probability that we don't see all three colors.
Suppose that an urn contains 8 red balls and 4 white balls. We draw 2 balls...
Suppose that an urn contains 8 red balls and 4 white balls. We draw 2 balls from the urn without replacement. Now suppose that the balls have different weights, with each red ball having weight r and each white ball having weight w. Suppose that the probability that a given ball in the urn is the next one selected is its weight divided by the sum of the weights of all balls currently in the urn. Now what is the...
An urn contains 1 white, 2 black, 3 red, and 4 green balls. If 6 balls...
An urn contains 1 white, 2 black, 3 red, and 4 green balls. If 6 balls are selected randomly (without replacement) and X represents the number of selections that are either red or green, find: (a) the probability mass function for X. (b) the expected value of X (calculate this value directly by using the probability mass function from part a).
An urn contains 3 white balls and 7 red balls. A second urn contains 7 white...
An urn contains 3 white balls and 7 red balls. A second urn contains 7 white balls and 3 red balls. An urn is selected, and the probability of selecting the first urn is 0.2. A ball is drawn from the selected urn and replaced. Then another ball is drawn and replaced from the same urn. If both balls are white, what are the following probabilities? (Round your answers to three decimal places.) (a) the probability that the urn selected...
An urn contains 10 red balls, 7 green balls, and 3 yellow balls. Draw 5 balls....
An urn contains 10 red balls, 7 green balls, and 3 yellow balls. Draw 5 balls. What's the probability that you draw 2 red, 2 green, and 1 yellow? (Same experiment as above) What's the probability that you draw 2 red, 1 green, and 2 yellow?
An urn contains 2 white balls, 3 red balls, and 5 blue balls. You draw 3...
An urn contains 2 white balls, 3 red balls, and 5 blue balls. You draw 3 balls (all at once) from the urn. What is the probability that they are all blue?
2. Urn A contains 6 green and 4 red balls, and Urn B contains 3 green...
2. Urn A contains 6 green and 4 red balls, and Urn B contains 3 green and 7 red balls. One ball is drawn from Urn A and transferred to Urn B. Then one ball is drawn from Urn B and transferred to Urn A. Let X = the number of green balls in Urn A after this process. List the possible values for X and then find the entire probability distribution for X.
An urn contains 7 blue and 8 green balls. You remove 3 balls from the urn...
An urn contains 7 blue and 8 green balls. You remove 3 balls from the urn without replacement. What is the probability that at least 2 out of the 3 balls are green.
Urn A contains 5 green and 3 red balls, and Urn B contains 2 green and...
Urn A contains 5 green and 3 red balls, and Urn B contains 2 green and 6 red balls. One ball is drawn from Urn A and transferred to Urn B. Then one ball is drawn from Urn B and transferred to Urn A. Let X = the number of green balls in Urn A after this process. List the possible values for X and then find the entire probability distribution for X.
Urn A contains 6 green and 4 red balls, and Urn B contains 3 green and...
Urn A contains 6 green and 4 red balls, and Urn B contains 3 green and 7 red balls. One ball is drawn from Urn A and transferred to Urn B. Then one ball is drawn from Urn B and transferred to Urn A. Let X = the number of green balls in Urn A after this process. List the possible values for X and then find the entire probability distribution for X.