When considering area under the standard normal curve, decide whether the area to the left of $z=-2.5$ is bigger than, smaller than, or equal to the area to the right of $z=2$.
A) smaller than
B) bigger than
C) equal to

Question

Quizplus · Accepted Answer

The area under the standard normal curve is symmetric about the mean, which is 0. Therefore, the area to the left of $z=-2.5$ is equal to the area to the right of $z=2.5$. Since $2.5>2$, the area to the left of $z=-2.5$ is bigger than the area to the right of $z=2$.

When Considering Area Under the Standard Normal Curve, Decide Whether z=−2.5z=-2.5z=−2.5

When Considering Area Under the Standard Normal Curve, Decide Whether $z=-2.5$