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## What is the difference between 3x and X3?? Explain with

X3 must mean x with the exponent of 3. 3x is a coefficient with the variable of x . For example : 3 x + 4 . X3 must mean x with the exponent of 3 . What does P mean in math? In statistics, the P is

## Cube (algebra)

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## Variable Notations

sample mean: average / arithmetic mean : x = (2+5+9) / 3 = 5.333: s 2: sample variance: population samples variance estimator: s 2 = 4: s: sample standard deviation : population

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