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The area under a particular normal curve between 12 and 20 is 0.9744. A normally distributed...

The area under a particular normal curve between 12 and 20 is 0.9744. A normally distributed variable has the same mean and standard deviation as the parameters for this normal curve. What percentage of all possible observations of the variable lie between 12 and 20​? nothing​% of all observations of the variable lie between 12 and 20.

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Answer #1

Given that the area under the normal curve between 12 and 20 is 0.9744.

Hence,

97.44 % of all observations of the variable lie between 12 and 20.

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