This repository contains problems on hypothesis testing, confidence intervals, P-value, percentiles, skewness, histogram and more.

Following are the numbers of daily bids received by the government of a developing country from firms interested in winning a contract for the construction of a new port facility

Master University Project

The following data are numbers of passengers on flights of Delta Air Lines between San Francisco and Seattle over 33 days in April and early May. 128, 121, 134, 136, 136, 118, 123, 109, 120, 116, 125, 128, 121, 129, 130, 131, 127, 119, 114, 134, 110, 136, 134, 125, 128, 123, 128, 133, 132, 136, 134, 129, 132

Query and analyze percentiles of player levels on Steam.

Fortune published a list of the 10 largest “green companies”—those that follow environmental policies. Their annual revenues, in $ billions, are given below. Find the mean, variance, and standard deviation of the annual revenues.

The following data are annualized returns on a group of 15 stocks. 12.5, 13, 14.8, 11, 16.7, 9, 8.3, -1.2, 3.9, 15.5, 16.2, 18, 11.6, 10, 9.5

The following data are the total 1-year return, in percent, for 10 midcap mutual funds

Python utility for pretty percentile plots

Free WordPress Plugin: The percentile calculator helps to find percentile values for a data set. Use this percentile calculator to create a table listing each 5th percentile www.calculator.io/percentile-calculator/

TypeScript implementation of the distributed quantile sketch algorithm DDSketch

A Go library for timing things and yielding rates, percentiles, and histograms

Cross-platform, multi-language implementation of multiple streaming percentile algorithms