We want to find the probability of getting a red ball in our first draw, given that in the second draw we got a white ball.
We will get P = 0.345
We know that the bowl has:
- 5 white balls
- 10 red balls
- 15 blue balls.
For a total of 30 balls.
We draw a ball and we store it.
Then we draw another ball and we see that it is a white ball.
We want to get the probability that the first ball was red.
The only thing we know, is that one of the white balls can be taken out of the sample space, because we can only draw it second if we did not draw it on the first attempt.
Then we can think that we have:
- 4 white balls.
- 10 red balls
- 15 blue balls.
For a total of 29 balls.
Then the probability of getting a red one is just the quotient between the number of red balls and the total number of balls, we will get:
P = 10/29 = 0.345
If you want to learn more, you can read:
brainly.com/question/11234923
Answer:
-3/2
Step-by-step explanation:
Remeber, to find slope we use this formula:
y - y all over x - x, or (y-y) / (x-x)
(6-9) / (5-3)
-3 / 2
= -3/2
Divide the total the lake holds by the number of days:
400 million / 25 days = 16 million gallons per day.
Answer:
9, but suddenly 2 of them get separate, 3 of them trempled by people and 4 others get kidnapped so, didn't have any cat in a street
