DATA --------------- BY. MWL. JAPHET MASATU

USING   AND   HANDLING  DATA.

Data Index	Probability and Statistics Index	Graphs Index

Data

What is Data?

			What is Data?
			Discrete and Continuous Data
			Analog and Digital

How to Show Data

	Bar Graphs
	Pie Charts
	Dot Plots
	Line Graphs
	Scatter (x,y) Plots
	Pictographs
	Histograms
	Frequency Distribution
	Stem and Leaf Plots
	Cumulative Tables and Graphs
	Graph Paper Maker

Surveys

	How to Do a Survey
	Survey Questions
	Showing the Results of a Survey
	Accuracy and Precision
	Activity: Asking Questions Activity: Improving Questions

Probability and Statistics

Measures of Central Value

	Finding a Central Value
	· Calculate the Mean Value and The Mean Machine
	· Find the Median Value
	· Find the Mode or Modal Value
	Activity: Averages Brain-Teaser
	Calculate the Mean from a Frequency Table
	Advanced: Mean, Median and Mode from Grouped Frequencies
	Weighted Mean

Measures of Spread

	The Range
	Quartiles and the Interquartile Range
	Percentiles
	Mean Deviation
	Standard Deviation
	Standard Deviation Calculator
	Standard Deviation Formulas

Comparing Data

	Univariate and Bivariate Data
	Scatter (x,y) Plots
	Outliers
	Correlation

Probability

	Probability
	The Probability Line
	The Spinner
	The Basic Counting Principle
	Relative Frequency
	Activities: An Experiment with a Die An Experiment with Dice Dropping a Coin onto a Grid Buffon's Needle Random Words
	Complement
	Probability: Types of Events
	Independent Events
	Dependent Events: Conditional Probability
	Tree Diagrams
	Mutually Exclusive Events
	False Positives and False Negatives
	Shared Birthdays
	Combinations and Permutations
	Combinations and Permutations Calculator

Random Variables

• Random Variables
• Random Variables - Continuous
• Random Variables - Mean, Variance and Standard Deviation

The Binomial Distribution

• Quincunx and Quincunx Explained
• The Binomial Distribution

The Normal Distribution

• Normal Distribution
• Standard Normal Distribution Table
• Skewed Data