Use the table to answer the question.
Number of White Balls Selected Number of Red Balls Selected
Bowl A 45 55
Bowl B 60 40
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?
(1 point)
Responses
50
50
100
100
200
200
300
300
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The total number of balls selected from Bowl B is 100 (60 white + 40 red). Since there are 500 balls in Bowl B, the proportion of white to red balls in Bowl B is 60:40 or 3:2.
Therefore, the expected number of white balls in Bowl B is (3/5) * 500 = 300 and the expected number of red balls in Bowl B is (2/5) * 500 = 200.
The estimated difference in the expected number of white and red balls in Bowl B is 300 - 200 = 100.
So, the answer is 100.