Question

pls, help . Daria performed an experiment in which she randomly pulled a marble from a bag, recorded its color, put it back, and then repeated. The following table represents the number of times each color of marble was pulled.

Answer 1

By finding the experimental probability of drawing a yellow marble, we will see that if she draws 50 marbles more, she should expect to get 13 yellow ones.

How to get a good expectation?

Out of the experiment that Daria performed, we can get an experimental probability.

This experimental probability is given by the quotient between the frequency for each color, and the total number of trials.

The total number of trials is:

N = 26 + 34 + 18 + 22 = 100

And on 26 of these, she got a yellow marble, then the experimental probability of getting a yellow marble is:

p = 26/100 = 0.26

Now, if she draws 50 marbles more, she should expect to get:

0.26*50 = 13 yellow marbles.

If you want to learn more about probability, you can read:

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