Total are 8 balls
At least 3 blue can be selected in (5C3 * 3C2 + 5C4 * 3C1 +
5C5*3C0)
= (10*3 + 4*3 + 1)
= 43
Ans: 43
Question 7: Among a set of 5 blue balls and 3 white balls, how many selections...
4. An urn contains 5 blue balls, 3 green balls, and 7 white balls. (a) A ball is selected from the urn. What are the odds the ball is green? (2 Two balls are selected without replacement. What are the odds the balls are blue and green? (c) Two balls are selected without replacement. What are the odds at least one is blue or at least one is green? (d) Two balls are selected without replacement. What are the odds...
3 red balls, 4 white balls, and 5 blue balls are mixed up in an urn. 3 are drawn at random. (a) How many ways can one of each color be drawn? (b) How many ways can three of the same color be drawn?
3. An urn contains five white balls numbered from 1 to 5, five red balls numbered from 1 to 5 and five blue balls numbered from 1 to 5. For each of the following questions, please give your answer first in the form that reflects your counting process, and then simplify that to a number. You must include the recipes. No other explanation needed. (a) In how many ways can we choose 4 balls from the urn? (b) in how...
5. Suppose that the first urn contains 3 blue balls, 2 green balls and 2 white balls the second urn contains 2 blue balls 3 green balls and 4 white balls. Take out one ball from each urn. (1) Find the probability that at least one blue ball. (2) Find the probability that one blue and one white. I(3) Given at least one ball is blue, ind the probability that one blue and one white. 5. Suppose that the first...
An urn contains 5 blue balls, 5 white balls, 5 red balls, and 5 green balls. Larry is selecting 4 balls at random one after the other without replacement. What is the probability that at least one of the selected balls is blue?
A box contains 6 red balls, 3 green balls, 7 blue balls, and 2 white balls. If two balls are two be selected with replacement, find the probability of selecting a red and blue ball. Oa. 0.10 O b.0.15 Oc. 0.13 Od.0.08
Part B 5* 7. Suppose that a box contains 2 red balls, 3 white balls, and 4 blue balls. Suppose also that balls are selected from the box one at a time, at random, without replacement. What is the probability that a) all white balls will be obtained in a row? ) both end balls are blue ?
An urn contains 3 red balls, 2 blue balls, and 5 white balls. A ball is selected and its color noted. Then it is replaced. A second ball is selected and its color noted. Find the probability of: Selecting 2 blue balls (round to 4 decimal places)
Suppose there is an urn containing 5 red, 4 white, and 11 blue balls. We drawn six balls from the urn (no replacement) (a) Find the number of ways (not the probability) of choosing a red ball, then a blue ball, then exactly 2 white balls, and finally exactly 2 blue balls. (b)Find the number of ways of choosing 2 red balls initially , then at least 3 blue balls, then a green ball. (c) Find the number of ways...
3. A box contains 10 red balls, 6 blue balls, and 4 white balls. We have taken 2 balls from the box. What are probabilities that we have taken c) one red ball and one white ball b) at least one blue bal a) 2 blue balls d) no one red ball