you select a marble without looking and then put it back. if you do this 60 times, what is the best…

you select a marble without looking and then put it back. if you do this 60 times, what is the best prediction possible for the number of times you will pick a green or a pink marble? times

you select a marble without looking and then put it back. if you do this 60 times, what is the best prediction possible for the number of times you will pick a green or a pink marble? times

Answer

Explanation:

Step1: Count total marbles

There are 10 marbles in total.

Step2: Count green and pink marbles

There are 1 green and 7 pink marbles, so 1 + 7=8 marbles are green or pink.

Step3: Calculate probability

The probability of picking a green or pink marble in one draw is $\frac{8}{10}=\frac{4}{5}$.

Step4: Predict number of times

If we draw 60 times, the best - prediction is $60\times\frac{4}{5}=48$ times.

Answer:

48