trinityis trinityis

30-04-2021
Mathematics

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Ben has a box of marbles. 30 of the marbles are red, 14 are green and 16 are blue. Ben randomly selects a marble from the box, records the color and then replaces the marble in the box. If he selects a marble 30 times, how many times do you predict he will select a blue marble?

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30-04-2021

Answer:

I predict he will select the blue marble 8 times

Step-by-step explanation:

In total there are 60 marbles so if they select a marble 30 times, that is half of 30. I just took half of the blue marbles and that would be the theoretical probability

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