Continuing the example of the Ace Slap-Stick Comedy Test, Bud claimed that, because 10% of the population had scores of 60 or better, which is 10 points from the mean, 5% must have had scores of 70 or better, because doubling the score distance always halves the percentage.
A) Bud is correct
B) Bud is mistaken
C) More information is necessary before a decision can be made.

Question

Quizplus · Accepted Answer

Bud's assumption does not accurately reflect how scores are distributed in a normal distribution. Doubling the distance from the mean does not necessarily halve the percentage of the population exceeding that score. The actual percentage of people scoring above a certain point depends on the specific characteristics of the distribution, such as its standard deviation.

Continuing the Example of the Ace Slap-Stick Comedy Test, Bud