State the empirical rule as specialized to variables.For any variable whose distribution ______ the following properties hold. Answer options: is triangular, is uniform, is bell shapedProperty 1:Approximately _____of all possible observations lie within one standard deviation to either side of the mean. Property 2: Approximately _____ of all possible observations lie with in two standard deviations to either side of the mean. Property 3: Approximately _____ of all possible observations lie within three standard deviations to either side of the mean. a. 89%, 99.7%, 100%, 75%, 95%, 68%b. 99.7%, 68%, 95%, 100%, 75%c. 95%, 99.7%, 100%, 68%, 89%