Question: Let X be a Normally distributed random variable with mean 0. Set-up a 1-way table in Excel with standard deviation of X as column inputs

Let X be a Normally distributed random variable with mean 0. Set-up a 1-way table in Excel with standard deviation of X as column inputs (0.1, 0.2, 0.3, . . . , 2). Use this 1-way table to answer the following question: As you increase the standard deviation of X from 0.1 with an increment of 0.1 each time, at what value of the standard deviation of X does the probability P(-1

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