Table of Contents
- 1 What is the probability of selecting two red balls if the first ball drawn is returned to the jar before the second ball is drawn What if the first ball is not returned?
- 2 What is the probability of getting a red ball?
- 3 What is the probability of drawing a white ball from a bag containing?
- 4 What is the probability of getting all white balls in four draws?
- 5 What is the probability of picking a red ball out?
- 6 What is the probability of drawing 2 red and 1 Blue?
What is the probability of selecting two red balls if the first ball drawn is returned to the jar before the second ball is drawn What if the first ball is not returned?
On your first pick, the probability is 11/16 that you choose a red ball. On the second pick, the probability is 10/15 that you choose a red ball. So 11/16*10/15 = 110/240 = 45.83\% chance of picking two red balls in a row.
What is the probability of getting a red ball?
If we randomly select a ball from the box: The chance of drawing a red ball is 2/6 = 1/3. The chance of drawing a green ball is 4/6 = 2/3.
What is the probability of drawing a white ball from a bag containing?
So, probability will be 3/7.
What is the probability of getting red card from a pack of 52 cards?
Answer: The probability of getting a red face card in a deck of 52 cards is 3/26.
How many red and white balls are in a box?
A box contains 7 red balls, 8 white balls, and 3 blue balls. If 3 balls are drawn at random without replacement, what is the probability of 2 are red and one is blue, at least 2 are white, and 1 of each colour are drawn?
What is the probability of getting all white balls in four draws?
The probability of getting all white balls in four draws is equal to the probability that no other color is drawn in four draws. Of the 20 original balls 15 are not white and 5 are white. On the first draw the probability of a white ball is (1 – 15/20) = 5/20.
What is the probability of picking a red ball out?
5) The probability of picking a red ball is 4/10 and the probability of picking a green ball is 3/10 and because the ball is put back in the box, the second green is also 3/10. So the probability is: Fig.5 Probability without replacement second ball out.
What is the probability of drawing 2 red and 1 Blue?
There are a total of 18 balls in the box and there are 3 ways to draw 2 red and 1 blue: first red 7 18 next red 6 17 blue 3 16 for a probability of ( 7 18) ( 6 17) ( 3 16) ≈ 0.026 The other two ways have the same probability so the final probability is ≈ 0.077 → 2 Red & 1 Blue. The other two combinations can be done the same way.