What is the probability that you will not draw a white ball?

If you meant to do this with replacement then the probability of getting no white balls is 8/12 * 8/12 = 4/9 so the probability of drawing no white balls would then be 1 – 4/9 = 5/9. So you have 4 white balls and 8 non white. The probability of non-having a white ball is 8/13.

What is the formula of probability class 8?

Of Probability: If n represents the total number of equally likely, mutually exclusive and exhaustive outcomes of an experiment and m of them are favourable to the happening of the event A, then the probability of happening of the event A is given by P(A) = m/n. (2) P(A) + P( \bar {A} ) = 1, Where \bar {A} = Not A .

What is the probability formula?

In general, the probability is the ratio of the number of favorable outcomes to the total outcomes in that sample space. It is expressed as, Probability of an event P(E) = (Number of favorable outcomes) ÷ (Sample space).

What is the probability that the balls drawn contain different colors?

A bag contain 2 red balls, 6 yellow balls and 4 green balls. If 3 balls are drawn randomly, then what is the probability that the balls drawn contain balls of different colors? = 48. = 12 / 55. A bag contain 2 red balls, 6 yellow balls and 4 green balls.

How many white balls are in a bag of random balls?

A bag contains 8 white balls and 6 black balls. If we taken out two random balls from that bag, then find the probability that they are of the same color? Here S be the sample space. therefore, 91.

How many green balls can you select from a bag?

2 green balls can be selected from 5 green balls and the remaining one ball select from (15 – 5) = 10 balls in 8 C 1 ways. = 80. = 4 / 11. A bag contain 4 red balls, 6 yellow balls and 5 green balls.

What is the probability that the second ball will be red?

First get the probability that you get white then red. There is a probability of 8/11 that the first is white. After that the total balls drops to 10. Therefore, the probability that the second is red in that case is 3/10. Multiply those to get 12/55. Next calculate the probability of getting red then white.