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### Cracking Probability and Combinatorics: Card Game Problems

Card game problems are a recurring theme in probability. In fact, a small set of basic principles allows you to crack game problems with ease, including the notorious poker hand problems.

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### Null Hypothesis and Formulas: A Definition with Examples

A basic discussion on the null hypothesis, z-scores, and probability. This article includes examples of the null hypothesis, one-tailed, and two-tailed tests. A coin is tossed and comes up tails ten times: is this just...

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### How to Use Standard Deviation Formula For Equations (Statistics Help)

Standard Deviation = σ (The Greek letter sigma) First find the mean of the given set of numbers. Next subtract the mean from each number in the set. Then square the sum of each number. Add the total of the...

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### Psychology Statistics Midterm Study Guide

Psychology Statistics Midterm Study Guide

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### How to Calculate Standard Deviation

How to do Standard Deviation manually in six straightforward steps, includes a step by step of how to do this using Excel, with screenshots and a link to a sample Excel sheet.

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### How to Calculate Expected Value Probability

For this hub, I will be explaining what expected value is, how to calculate it, and show an example by calculating the expected value of a betting game involving a fair coin.

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### How To Calculate Standard Deviation

First, you need to determine the mean. The mean of a list of numbers is the sum of those numbers divided by the quantity of items in the list (read: add all the numbers up and divide by how many there are). Then,...

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### How to Analyze a Statistical Survey: Standard Deviation, Outliers, and More

This Hub shows how to analyze data obtained from a statistical survey. The methods prescribed in this Hub are basic, yet effective.

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### Statistics and Probability: Cumulative Distribution Function

Definitions, resources, references, and examples that include three different software packages.

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### How to calculate simple statistics

In statistics, the most important calculations are the mean, mode, median, variance, and standard deviation (std dev) In this hub, I will cover the following: sample size population mean mode median variance ...