Consider a random variable z that has a standardized normal

Consider a random variable, z, that has a standardized normal distribution. Determine P(z > -1).

A. 0.1251

B. 0.1512

C. 0.8413

D. 0.2124

Solution

Using a z table, the right tailed area for z = -1 is

P(z>-1) = 0.8413 [OPTION C]