Psych statistics

This video describes the standard deviation along with the Empirical Rule

The Empirical Rule When a population has a histogram that is approximately bell-shaped, then Approximately 68% of the data will be within one standard deviation of the mean. In other words, approximately 68% of the data will be between µ − σ and µ + σ. Approximately 95% of the data will be within two standard deviations of the mean. In other words, approximately 95% of the data will be between µ − 2σ and µ + 2σ....William Navidi, Barry Monk Elementary STATISTICS Second Edition

Stem and leaf plot, Histogram, Boxplot, PPplot & QQ plots, Scatterplot

Skewness Kurtosis

Intro To Standard Deviation

🤓A specific case of the normal distribution is the standard normal distribution. 👉🏻In a typical normal distribution, the mean is equal to zero (=0), and the standard deviation is equal to one (=1). ✅The random variable with the standard normal distribution is designated by the letter z. 📌Follow for more Learnbay #standardnormaldistribution #standarddistribution #standarddeviation #Statistics #StatisticsForDataScience #stats #statistics #learnbay #LearnbayDataScience