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Unformatted text preview: changing individual values in the data affect the variance. Identify difference between formula for a sample and formula for a population. Explain what the value is of knowing the variance of a data set, particularly as it relates to making inferences from a sample. Given a set of data, create the multi-column table used in class to calculate variance and standard deviation. Normal Distribution: Identify properties and example of normal distribution in real life. Know % of values between 0, 1 and 2 standard deviations. Z-score: Calculate a z-score from a mean, standard deviation and x value (or calculate an x value from a z-score). Determine the area under the curve between 2 z-scores, including looking up a z-score on a table . (You will not need to know a z score from a table)....
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- Spring '09