Basic Statistics for Business and Economics ch 7
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| show | Uniform probability distribution and normal probability distribution.
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| show | The simplest distribution for a continuous random variable. This distribution is rectangular in shape and is defined by minimum and maximum values.
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| show | (a + b)/2
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| show | The square root of [(b-a)^2]/12
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| Uniform Distribution P(X) = | show 🗑
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| Area = | show 🗑
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| show | It is bell-shaped and had a single peak at the center of the distribution. It is symmetrical about the mean. It falls off smoothly in either direction for the central values - it is asymptotic. Location of a normal distribution is determined by the mean.
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| Bell-Shaped | show 🗑
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| show | If the normal curve is cut vertically at the center value, the two halves will be mirror images.
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| show | The curve gets closer and closer to the X-axis but never actually touches it. The tails of the curve extend indefinitely in both directions.
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| The dispersion or spread of the distribution is determined by: | show 🗑
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| show | One member of the family of normal distributions that can be used to determine the probabilities for all normal distributions. It is unique because it has a mean of 0 and a standard deviation of 1.
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| show | The signed distance between a selected value, designated X, and the mean (mu), divided by the standard deviation (sigma).
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| Empirical Rule | show 🗑
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