Calculator, Tools and Guide Quick Reference Index

How to Distinguish between a Quantitative and a Qualitative Variable 

How to Distinguish between a Discreet and a Continuous Variable 

How to Distinguish between a Population and a Sample

How to Distinguish between the Different Levels of Measurement: Nomimal, Ordinal, Interval, and Ratio

How to Construct a Frequency Table in Excel using the Countif Statement

How to Construct a Relative Frequency Table using Excel

How to Construct a Frequency Distribution Table in Excel using the COUNTIFS Statement

How to Construct a Frequency Distribution Table using a PivotTable in Excel

How to Construct a Cumulative Frequency Distribution Table using Excel

How to Construct a Simple Histogram using Excel

How to Construct a Frequency Distribution Table Based on An Existing Histogram using Excel

How to Construct a Frequency Polygon in Excel

How to Construct a Cumulative Frequency Distribution Table and a Cumulative Frequency Polygon using Excel

How to Determine the Appropriate Number of Classes for a Histogram or Frequency Distribution Table

How to Determine the Appropriate Class Interval Width in a Histogram or Frequency Distribution Table

How to Calculate Population and Sample Means

How to Find the Median Value

How to Find Modal Values (The Mode)

How to Find the Weighted Mean

How to Find the Geometric Mean

How to Find the Range

How to Find the Population and Sample Variance

How to Find the Population and Sample Standard Deviation

Chebyshev's Theorem Calculator

The Empirical Rule Calculator

How to Find the Arithmetic Mean, the Variance and the Standard Deviation of Grouped Data

How to Construct a Dot Plot using Excel

How to Find Percentiles, Deciles and Quartiles using Excel

How to Construct a Box Plots using Excel

Pearson's Coefficient of Skewness and the Skew Function using Excel

Measuring Correlation between Variables using the CORREL Function using Excel

How to Construct a Contingency Table in Excel

How to Identify the Relevant Probability Concept: Classical, Empirical, and Subjective Probability   

Empirical Probability Calculator 

2x2 Contingency Table Probability Calculator 

2x3 Contingency Table Probability Calculator 

How to Determine the Mean, Variance, and Standard Deviation of a Discrete Probability Distribution 

How to Determine the Mean, Variance, and Standard Deviation of a Binomial Distribution 

How to Find a Probability of a Value in a Binomial Distribution 

The Uniform Probability Distribution Mean, Variance, Standard Deviation, and Probability Calculator 

How to Find a Value Associated with a Probability (Proportion) - The Uniform Probability Distribution 

How to Find a Probability Associated with a Value - The Uniform Probability Distribution 

The Standard Normal Probability - Z Score Calculator 

How to Find a Value Associated with a Probability (Proportion) - The Normal Probability Distribution 

How to Find a Probability Associated with a Value - The Normal Probability Distribution  

How to Visualize a Sample Means Distribution 

Standard Error of Sampling Distribution Calculator 

How to Estimate a Confidence Interval of Sample Means when the Population Mean and Standard Deviation are Known 

How to Estimate the Probability of a Sample Mean when the Population Mean and Standard Deviation are Known  

How to Create a Confidence Interval for a Population Mean when the Population Standard Deviation is Known 

How to Create a Confidence Interval for a Population Mean when the Population Standard Deviation is Unknown  using T-distributions 

Sample Proportion Calculator 

How to Find the Confidence Interval for Population Proportion 

How to Find the Necessary Sample Size in Order to Estimate the Population Mean 

How to Estimate the Necessary Sample Size in Order to Estimate the Population Proportion