b. Obtain the standard deviation of the random variable. 0= (Round to three decimal places as needed.) c. Draw a probability histogram for the random variable. Choose the correct graph below. O Click here to view histogram a O Click here to view histogram d O Click here to view histogram b. O Click here to view histogram c. the two-standard-deviation interval is The mean is The one-standard-deviation interval is (Type integers or decimals rounded to three decimal places as needed. Use ascending order.) and the three-standard-deviation interval is 00

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