Question

7. A bag contains 6 red and 10 black

Answer 1

Answer:

125

Step-by-step explanation:

To find the expected number of black marbles, take the probability of getting a black marble times the number of marbles drawn

P(black) * 200

5/8 *200

125

We should expect 125 black marbles

Answer 2

Answer:

125

Step-by-step explanation:

Once you have the theoretical probability of picking a black marble which is 5/8, just multiply the number of drawings by 5/8 to get the answer to problem 8.

200 * 5/8 = 1000/8 = 125