Question

mark and shade the area described and calculate the area you shaded using the z - score table. z > 1.21

Explanation:

Step1: Use the property of the standard normal distribution

The total area under the standard normal curve is \(1\). The area to the left of \(z = 1.21\) can be found using the z - score table.

Step2: Look up the z - score in the table

Looking up \(z=1.21\) in the standard normal distribution table (z - table), the value is \(0.8869\).

Step3: Calculate the area to the right

Since the total area is \(1\), the area to the right of \(z = 1.21\) (i.e., \(P(Z>1.21)\)) is \(1 - 0.8869\).

Answer:

\(0.1131\)