Which of the following accurately describes the proportions in the tails of a normal distribution?
A)Proportions in the right-hand tail are greater than 0.50, and proportions in the left-hand tail are less than 0.50.
B)Proportions in the right-hand tail are less than 0.50, and proportions in the left-hand tail are greater than 0.50.
C)Proportions in both tails are less than 0.50.
D)Proportions in both tails are greater than 0.50.

Question

Quizplus · Accepted Answer

In a normal distribution, the area under the curve to the left or right of the mean represents the proportion of data in that section. Since the total area under the curve equals 1 (or 100%), and the mean divides the distribution into two equal halves, the proportion of data in each tail (left or right of the mean) is less than 0.50.

Which of the Following Accurately Describes the Proportions in the Tails