This video tutorial teaches how to solve problems involving normal distributions using a graphing calculator. It covers the use of the normal CDF function to find the area under the curve and the inverse normal function to find threshold values. The tutorial includes practical examples, such as determining the percentage of overfilled milk jugs and finding percentile volumes. It emphasizes understanding when to use each function and provides step-by-step instructions for using a graphing calculator.

What is the purpose of the normal CDF function on a graphing calculator?

How can we determine the percentage of jugs that are overfilled?

What values do we need to input into the graphing calculator to find the percentage of jugs exceeding 65 ounces?

What does the inverse normal function return when given a percentage?

How do we interpret the area input into the inverse normal function?

What is the significance of the 28th percentile in the context of the milk jug problem?

Explain the difference between using normal CDF and the inverse normal function.