mean – Data and Machine by viswateja

Mean Median Mode

Mean Might be we heard about “average” in our day to day life, In statistical world average is Mean, where you add up all the numbers and then divide by the count of numbers/data points. Median is the “middle” value in the list of numbers. To find the median, your numbers/data points have to beContinue reading “Mean Median Mode”

Variance and Standard Deviation

Variance Variance is a measurement of the spread between numbers in a given data set. Below is the formula to calculate Variance ,just remember we need to use n-1(where n is count of observations/population/sample) in when we are using sample (click here to know about Sample vs Population). Standard deviation: Standard deviation measures the spread ofContinue reading “Variance and Standard Deviation”