Z-Scores

Data Skeptic

• Episode: Z-Scores
• Website: Data Skeptic
• Feed URL: https://dataskeptic.com/api/blog/rss
• Published: 2015-05-15 02:00

This week's episode dicusses z-scores, also known as standard score. This score describes the distance (in standard deviations) that an observation is away from the mean of the population. A closely related top is the 68-95-99.7 rule which tells us that (approximately) 68% of a normally distributed population lies within one standard deviation of the mean, 95 within 2, and 99.7 withi