How to find the probability using a normal distribution curve

The video tutorial explains the concept of standard distribution, focusing on the mean and standard deviation. It details how to calculate values within one, two, and three standard deviations and discusses the probability of selecting a value within a given interval. The tutorial emphasizes the importance of understanding the percentages associated with each deviation and the challenges of accounting for all data in a standardized distribution.

What percentage of data is accounted for within three standard deviations?

How do you calculate the probability of a value being at most 56?