Final answer:
To find the indicated probability using the standard normal distribution, use the z-score and the standard normal distribution table.
Step-by-step explanation:
To find the indicated probability using the standard normal distribution, we use the z-score and the standard normal distribution table. (a) P(z > 2.175) is the probability that a standard normal random variable takes on a value greater than 2.175. This can be found by subtracting the cumulative probability of z = 2.175 from 1. (b) P(z > -1.85) is the probability that a standard normal random variable takes on a value greater than -1.85. This can be found by subtracting the cumulative probability of z = -1.85 from 1.