How do you find the probability of # P(z < -2.58# or #z > 2.58)# using the standard normal distribution?
1 Answer
Mar 18, 2018
0.0098
Explanation:
Let's consult a z-table, such as this one. We only need one number: when z = -2.58 and we can do some math to get the final answer.
The table says that the P(
We also know that the normal curve is symmetric, meaning that any area can be flipped (i.e.