(Answered) Empirical rule for a symmetrical bell shaped curethe

Statistics

Empirical Rule: For a symmetrical bell shaped cure

The probability of a data point being within +/- one standard deviation is 68%

The probability of a data point being within +/- two standard deviation is 95%

The probability of a data point being within +/- three standard deviation is 99.7%

What is the probability of finding a data point between - 1 standard deviation and 2 standard deviations?

Provide an explanation, in short precise language explaining how you determined your answer.

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