Question

Find the following probabilities based on the standard normal variable z. (You may find it useful to reference the z table). Round your answers to 4 decimal places.

Answer 1

To find the probability based on the standard normal variable z, calculate the z-score and look up the corresponding area in the z-table. Use a calculator or the z-table to find specific values like 20.01 or an area of 0.9.

Step-by-step explanation:

To find the probability based on the standard normal variable z, we need to calculate the z-score and look up the corresponding area in the z-table. For example, to find 20.01, we can use a calculator or the z-table to find that 20.01 is approximately equal to 2.326. To find the probability for an area of 0.9, we can use the z-table to find that the corresponding z-score is approximately 1.28.