# Author Archives: Tanner Paige Floisand

## Confidence interval for a single proportion

A confidence interval gives an estimated range of values which is likely to include an unknown population parameter, the estimated range being calculated from a given set of sample data, as this site puts it. This site says statisticians use a confidence interval to describe the amount of uncertainty associated with a sample estimate of a population parameter. They are used […]

## IQR

IQR, or Interquartile Range, is a robust measure of scale calculated by taking the third and the first quartiles in a set of data and subtracting them and is used in descriptive statistics. To find either of these quartiles, you must first find the median of a set of numbers. These two halves then have […]