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What would the world be like without fractions?
it wouldn't
How to add standard deviations?
Square each standard deviation individually to get each variance. Add the variances, divide by the number of variances and then take the square root of that sum. ---------------------------- No, independent linear variables work like this: If X and Y are any two random variables, then mX+Y = mX + mY If X and Y are independent random variables, then s2X+Y = s2X + s2Y
Why isn't the world in a square?
Because God felt like making the world spherical. Besides if it were shaped like a cube gravity would be different everywhere and Newton would be at a loss.
Square root 2x Times Square root 50x?
X = any number you like. You see, in order to solve for x, one would have to know what those two things equaled. For instance, what if x = zero? The square root of 2 times zero multiplied by the square root of 50 times zero, is going to be zero.
Is a crisis a much bigger problem than a catastrophe?
no, a catastrophe would be like the world ending. a crisis would be like needing new shoes and not being able to get them.
