You are interested in how many hours students study for a statistics exam each week and collect data from a small sample of students.The scores in your data set (representing hours of studying per week) include the following: 10, 15, 12, 18, 19, 16, and 12.The standard deviation for this set of scores is _________ .(Enter your answer rounded to two decimal places.This means you should include two numbers to the right of the decimal point.For example 0.00.Use n-1 as your denominator.)