In this scenario, Mr. Lim has marbles of five different colors: red, yellow, green, blue, and white. Since it’s mentioned that the marbles are identical in number, we can assume that each color is equally likely to be drawn.
Thus, the probability of drawing a green marble in one trial is:
\[ P(\text{green marble}) = \frac{1}{5} \]
Since Mr. Lim is conducting this experiment for 50 trials, the expected number of times he will draw a green marble can be calculated using the formula:
\[ \text{Expected number of green marbles} = \text{Total trials} \times P(\text{green marble}) \]
Substituting the values:
\[ \text{Expected number of green marbles} = 50 \times \frac{1}{5} = 50 \times 0.2 = 10 \]
Thus, Mr. Lim can expect to pick 10 green marbles based on 50 trials.
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