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You select a marble without looking and then put it back. If you do this $12$ times, what is the best prediction possible for the number of times you will pick an orange or a purple marble? $\newline$ Choices: $\newline$ (A) $12$ $\newline$ (B) $7$ $\newline$ (C) $10$ $\newline$ (D) $8$

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Make predictions

Full solution

Q. You select a marble without looking and then put it back. If you do this

12

times, what is the best prediction possible for the number of times you will pick an orange or a purple marble?

\newline

Choices:

\newline

(A)

12

\newline

(B)

7

\newline

(C)

10

\newline

(D)

8

Calculate Probabilities: First, we need to know the probability of picking an orange or a purple marble each time you select one. Unfortunately, the problem doesn't provide the total number of marbles or the number of orange and purple marbles specifically. We'll assume equal probability for simplicity, but this is a guess since we don't have exact numbers.

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