Answer:
Example:
A bag contains 3 black balls and 5 white balls. Paul picks a ball at random from the bag and replaces it back in the bag. He mixes the balls in the bag and then picks another ball at random from the bag.
a) Construct a probability tree of the problem.
b) Calculate the probability that Paul picks:
i) two black balls
ii) a black ball in his second draw
Solution:
tree diagram
a) Check that the probabilities in the last column add up to 1.
b) i) To find the probability of getting two black balls, first locate the B branch and then follow the second B branch. Since these are independent events we can multiply the probability of each branch.
ii) There are two outcomes where the second ball can be black.
Either (B, B) or (W, B)
From the probability tree diagram, we get:
P(second ball black)
= P(B, B) or P(W, B)
= P(B, B) + P(W, B)
Answer:
Where is the picture? I can help
Step-by-step explanation:
I depends on the price of gas and how many gallons she has and how fast she is going and if she would have to stop could you please clarify?
-eagle
It would be 550x10 (5 tens = 50)
so you would solve for 550
<u> x10</u>
5500
Answer:
11111111 111 1 1 1 11
Step-by-step explanation:
