From Ramanujan to calculus cocreator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to work with surveys and samples in general statistics.
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How To: Compute a square root using the geometric method

How To: Calculate the area of a triangle using a basic formula

How To: Find outliers using the Zscore method

How To: Remember "greater than" & "less than" symbols

How To: Find the Percent Given Two Numbers

How To: Subtract a mixed number from a proper fraction in basic math

How To: Find the area of a triangle when given 2 sides & angle

How To: Find the coordinate of a point

How To: Do long division with decimals

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

How To: Calculate Faster Than a Calculator

How To: Do long division without a calculator

How To: Find a number given Its percent

How To: Calculate percent composition for chemistry

How To: Calculate the area of a parallelogram

How To: Find the Radius of a Circle from Arc Length

How To: Solve problems involving functions in algebra

How To: Learn Calculus in 20 minutes

How To: Find the opposite and absolute value of a number

How To: Find the Slope Given 2 Ordered Pairs

How To: Compute a square root using the geometric method
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