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

Multiple Choice

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) $a$