lecture13 - Will finish chapter 13 today and begin chapter...

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Unformatted text preview: Will finish chapter 13 today and begin chapter 14 So far have done chapters 1-14 Will be doing chapters 15-19 in the coming weeks Suggested problems: 12.5, 12.11, 12.13, 12.15, 12.19, 12.31 13.5, 13.17, 13.19, 13.25, 13.30 14.5, 14.9, 14.15, 14.23 Standard scores You can convert any Normal Density into one with a mean of 0 and a SD of 1 Why is this important? The distribution of the heights of young men is approximately normal with a mean of 70 inches and standard deviation of 2,5 inches What is the standard score for a height of 72 inches? What is the probability of randomly selecting a young man with a height less than 72 inches On an IQ test for the 20-34 year old age group, the scores are approximately normally distributed with a mean of 110 and standard deviation of 15 Sarah scores 130 on the test What is her standard score? What percentile was her score? Important use of statistics has to do with uncovering relationships between variables Allows one to explore relationships that are hypothesized or to discover potentially new ones...
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This note was uploaded on 03/28/2011 for the course STAT 100 taught by Professor D during the Spring '11 term at Simon Fraser.

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lecture13 - Will finish chapter 13 today and begin chapter...

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