A study of the weights of the brains of Swedish men found that the weight X was a random variable with mean 1400 grams and standard deviation 20 grams. Find positive numbers a and b such that Y = a + bX has mean 0 and a standard deviation 1.

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- Dec 14th 2008, 07:30 PMDINOCALC09Standard Deviation
A study of the weights of the brains of Swedish men found that the weight X was a random variable with mean 1400 grams and standard deviation 20 grams. Find positive numbers a and b such that Y = a + bX has mean 0 and a standard deviation 1.

- Dec 14th 2008, 08:14 PMmr fantastic