Question

You select a marble without looking and then put it back. If you do this 20 times, what is the best prediction possible for the number of times you will pick a purple marble?
The image shows 1 green marble, 1 orange marble, and 3 purple marbles.
*
1 point
12
5
1
17

Answer 1

Based on the proportion of purple marbles in the jar (3 purple out of 5 total marbles), the best prediction possible for the number of times you will pick a purple marble out of 20 selections is:

(3/5) * 20 = 12

Therefore, the best prediction is 12.