# stastastics

two balls are drawn in succession,without replacement, from the box containing 3 red and 2 white balls, what is the probability of drawing a white on the second draw?

1. 👍
2. 👎
3. 👁
1. Assuming a red ball is chosen on first draw, P(w) = 2/4

Assuming a white ball is chosen on first draw, P(w) = 1/4

Either-or probabilities are found by adding the individual probabilities.

1. 👍
2. 👎

## Similar Questions

1. ### math

6. A bowl contains 10 red balls, 10 green balls and 10 white balls. a. What is the probability of drawing 2 white balls with replacement? b. What is the probability of drawing 2 white balls without replacement?

A box contains exactly five chips, three red and two white. Chips are randomly removed one at a time without replacement until all the red chips are drawn or all the white chips are drawn. What is the probability that the last

3. ### Math

An urn contains 8black and 7 green balls. Five balls are randomly drawn from the urn in succession, with replacement. That is, after each draw, the selected ball is returned to the urn. What is the probability that all 5balls

4. ### MATH

An urn contains 5 white and 6 black balls. Four balls are randomly drawn from the urn in succession, with replacement. That is, after each draw, the selected ball is returned to the urn. What is the probability that all 4 balls

1. ### MATH

An urn contains 8 pink and 7 red balls. 6 balls are randomly drawn from the urn in succession, with replacement. That is, after each draw, the selected ball is returned to the urn. What is the probability that all 6 balls drawn

2. ### Math

A bag contains 4 green marbles, 6 red marbles, and 2 white marbles. Three marbles are drawn at random with replacement. With replacement means that after a marble is drawn, it is replaced before the next one is drawn. What is the

3. ### Discrete Math

A box contains 55 balls numbered from 1 to 55. If 8 balls are drawn with replacement, what is the probability that at least two of them have the same number?

4. ### Mathematics

Three balls are drawn successively from the box containing 6 white balls 5 red balls and 4 blue ball find the probability that they are drawn in the order blue red and white if each ball is replaced or not replaced

1. ### Math

suppose that a box contains 3 red and 2 green balls.rwo balls are drawn from tje box with out replacement.what is the probability that the first is red and the second is green

2. ### statistics

An Urn contains 7 red and 3 white balls. Two balls are drawn in succession without replacement. If the second ball is white, what is the probability that the first ball was white?

3. ### science

A box contains 10 balls of which 6 are red (R) and 4 are white (W) . Three balls are taken from the box at random, one after the other. The probability that the 3 balls drawn are in the order RRW is equal to,

4. ### maths

A box contains 20 balls, of which 5 are red, 5 are blue, 5 are white and 5 are green. Suppose a sample of 5 balls are chosen without replacement. a) find the probability that the sample contains balls of all the same colour