distributions, since µ and ? determine the shape of the distribution About 2/3 of all cases fall within one standard deviation of the mean, that is
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the mean and the variance do not completely determine the distribution, by a normal distribution with a mean of 3 and a standard deviation of 4
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Given the mean and standard deviation of a normal curve, we'd like to approximate the D Be able to use the standard normal table (z-table) to find the
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standard normal distribution, which has mean 0 and variance 1, will be used to determine probabilities of the general normal distribution
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1 Find the range of values that represent the middle 99 7 of the distribution SOLUTION: The middle 99 7 of data in
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Normal distribution - finding probabilities and percentiles If IQs are normally distributed, with mean 100 and a standard deviation of 16, what is the
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mean and standard deviation, it will use the default values Example: 1 Find P(Z < -1 05), which is the area under the standard normal curve to the left of
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Finding a Normal Probability A normal distribution has mean ? and standard deviation ? An x-value is randomly selected from the distribution
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In Section 5 2, you will discover how to calculate normal probabilities As the mean of the normal distribution and a is its standard deviation
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