Provide an appropriate response.
-Which of the following statements concerning the standard normal curve is/are true (if any)? a. The area under the standard normal curve to the left of $- 3$ is zero.
b. The area under the standard normal curve between any two z-scores is greater than zero.
c. The area under the standard normal curve between two $\mathrm { z }$-scores will be negative if both $\mathrm { z }$-scores are negative.
d. The area under the standard normal curve to the left of any z-score is less than 1 .
A) a, c
B) b, d
C) $a , b$
D) $a$

Question

Quizplus · Accepted Answer

The area under the standard normal curve between any two z-scores is always positive because it represents the probability of a variable falling within that range, and probabilities cannot be negative. The area to the left of any z-score is less than 1 because the total area under the curve is 1, and any point to the left excludes some portion of the curve.

Provide an Appropriate Response −3- 3−3 Is Zero B z\mathrm { z }z

Provide an Appropriate Response $- 3$ Is Zero
B $\mathrm { z }$