Which of the Following Statements Concerning the Standard Normal Curve

Multiple Choice

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 z-scores will be negative if both
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, b
B) b, d
C) a, c
D) a