In this tutorial, we learn how to know the difference: census, study, & sample survey. The census is when everyone's opinion is needed. An example is when you will see census studies happen throughout the year from the government seeing how many people live in one household. A study is when you only need the opinion of experts. This can be when companies are releasing a new product and need the opinions of doctors or dentists about it. A sample survey is when a few people's opinions are enough. This is just a sample of other people and doesn't represent everyone else.
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How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Find a number given Its percent

How To: Find standard deviation

How To: Calculate Faster Than a Calculator

How To: Convert Fahrenheit to Celsius with a formula

How To: Find the Volume of Composite Figures (Also Called Composite Shapes)

How To: Find the x & y intercepts of rational functions

How To: Solve an equation with a radical under a radical

How To: Find the equation of a line given 2 points

How To: Find the volume of a cone quickly

How To: Find the Percent Given Two Numbers

How To: Calculate percent composition for chemistry

How To: Find the coordinate of a point

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How To: Use a TI89 to calculate nCr

How To: Figure out the domain & range of a piecewise function

How To: Use the ratio formula to find coordinates of a point

How To: Find the volume of a sphere with radius r

How To: Solve rateofchange problems with the chain rule
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