Number of White Balls Selected Number of Red Balls Selected
Bowl A 5 15
Bowl B 16 4
Clark’s Results
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. Simon and Clark repeatedly selected a ball from both bowls and recorded the results in a table. Whose results will give you a better indication about the proportion of white and red balls in each bowl? Explain your answer.
a Neither; they conducted the same number of trials.
b Clark’s experiment. He conducted a greater number of trials than Simon.
c Simon’s experiment. He conducted a greater number of trials than Clark.
d Both results can be used, as they performed the experiment at random.
1 answer
b Clark’s experiment. He conducted a greater number of trials than Simon. The larger the sample size, the more accurate the results will be. Clark’s results include more data points, so they give a better indication of the proportion of white and red balls in each bowl.