What is the probability that 2 balls drawn are white and blue?
Table of Contents
What is the probability that 2 balls drawn are white and blue?
A bag consists of 3 red balls, 6 white balls and 7 blue balls. What is the probability that 2 balls drawn are white and blue? P (White & Blue) = P (event 1) + P (event 2) = 7/40 + 7/40 = 7/20 = 0.35 Since both are dependent i.e the the use of ‘and’ in the question means the two events must be multiplied
How many blue and red balls are there in the box?
A box contains 5 blue and 4 red balls. Two balls are drawn successively from the box without replacement, and it is noted that the second one is red. What is the probability that the first is also red?
How many balls are in box 1 2 and 3?
3 balls (Red and white) in box 1, 2 and 3 each. Box 1 has 1 red ball, box 2 has 2 red ball and box 3 has 3 red ball. I randomly picked one of the 3 boxes, and took 1 ball out and it was red. What is the probability that the box I picked was box 1?
What is the difference between draws in probability with replacement?
The draws in probability with replacement are independent events. For instance, we note from the example above that we were doing the first draw, and there were 3 red and 2 white balls in the box. When we were doing the second draw, again, there were 3 red and 2 white balls in the box. The first draw did not affect the second draw and vice versa.
What is the probability that you pick four red balls?
The probability that you pick four red balls is Since you have to pick 4 balls, the number of elements in the sample space would be 11 C 4 (“11 choose 4”). The number of ways of picking all red balls would be 6 C 4.
How many balls can be drawn from a bag?
A bag contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the bag, if at least one black ball is to be included in the draw 64 128 132
How many red and blue balls are in a bag?
A bag contains 3 red balls and 4 blue balls. Find the probability of picking at random two balls of a) the same color b)different colors [closed] Closed. This question needs details or clarity.