MAT136H1 Lecture Notes - Standard Deviation
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MAT136H1 Full Course Notes
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Normal distribution has its probability density function as. , where is the mean and the standard deviation. Most of survey results can be reflected unto normal distribution. Here, , and , therefore the pdf is: the probability that money spent is over is: the integral by hand, but by either plugging into the computer calculator, or looking up normal distribution table. This cannot be simply evaluated by taking: the percentage that the money spent is less than is:
