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Find the standard deviation for the given probability.

If it is assumed that the value of a share on 1 January will be normally distributed with mean 71, what would be the standard deviation of the share price if it is assumed that there is 95 percent likelihood that the value will be at least 64?

(1) 0.2799

(2) 0.235

(3) 4.2553

(4) 18.1077

(5) 3.5714

Statistics and Probability, Statistics

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