STATISTICAL TECHNIQUES AND TOOLS
Z DISTRBUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.About what percent of the products last 8 days or more?
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68%
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34%
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9.12%
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90.88%
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Explanation:
Detailed explanation-1: -The Empirical Rule or 68-95-99.7% Rule gives the approximate percentage of data that fall within one standard deviation (68%), two standard deviations (95%), and three standard deviations (99.7%) of the mean. This rule should be applied only when the data are approximately normal.
Detailed explanation-2: -FOOD The shelf life of a particular snack chip is normally distributed with a mean of 173.3 days and a standard deviation of 23.6 days.
There is 1 question to complete.