# SOLUTION: suppose that the distribution is bell shaped. if approximately 68% of the relative increase in stock price lie between .61% and .87%, then the approximate value of the standard dev

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: suppose that the distribution is bell shaped. if approximately 68% of the relative increase in stock price lie between .61% and .87%, then the approximate value of the standard dev      Log On

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 Question 255038: suppose that the distribution is bell shaped. if approximately 68% of the relative increase in stock price lie between .61% and .87%, then the approximate value of the standard deviation for the distribution is ?Answer by Greenfinch(383)   (Show Source): You can put this solution on YOUR website!68% represents 1 SD each side, so mean is (.61 + .87)/2 = .74 SD is therefore .74 - .61 or .87 - .74 = .13