In 2019, the average high school GPA for incoming University of Maryland freshman was 4.32 with a standard deviation of 0.285. Suppose UMD freshman are randomly assigned into groups of 25. rb) What is the standard deviation of the sampling distribution of all samples like this: Give the formula with values that you entered in your calculator as a way of showing your work: Give your final answer rounded to 3 decimal places: c) What is the probability of a group having an average high school GPA below 4.1? Give the command and values you used as a way of showing your work: Give your final answer rounded to 6 decimal places or write your final answer in scientific notation rounded to one decimal pl