Answer to Question #187226 in Statistics and Probability for Gela

Question

For instance, one of your friends from another school asks your help about his problem in Statistics and

Probability. He needs to answer his assignment but unfortunately, he left his module in the school

. He wants

to know how to identify the regions under the normal curve corresponding to different standard normal values.

Your friend will send a picture of a normal curve with the corresponding area, and he asks you favor to explain

each picture on how to obtain the value of the shaded part of the normal curves. Here is the screenshot of the

pictures

Answer 1

There are seven ways your sketch could look, depending on what z-values you were given. Once you have drawn your sketch, look at the pictures below. Click on the image that looks most like your sketch. The link will take you to a step-by-step guide on how to find the area under a normal curve for that shape. Many of these also have short videos showing the steps.

Find an area under a normal distribution

area between two z scores on same side

area between two z values on opposite side of mean