Use the table to answer the question. Number of White Balls Selected Number of Red Balls Selected Bowl A4555 Bowl B6040 Bowls A and B contain a number of white and red balls. Clark repeatedly selected a ball from both bowls and recorded the results in a table. If there are 500 balls in Bowl B, what is the estimated difference in the expected number of white and red balls in Bowl B?

Question

300
200
100
50

Answer 1

The expected number of white balls in Bowl B is 60, and the expected number of red balls in Bowl B is 40. Therefore, the estimated difference in the expected number of white and red balls in Bowl B is 60 - 40 = 20.

However, since there are 500 balls in Bowl B, we need to scale up this estimated difference.

(20 / 100) * 500 = 100

Therefore, the estimated difference in the expected number of white and red balls in Bowl B is 100.

So the answer is 100.