Consider the following data set. 51, 59, 57, 55, 56, 59, 55, 53, 61, 57, 59, 59, 55, 57, 56 Use the data entry method in your scientific calculator to enter the measurements. Recall the proper memories to find the mean. Recall the proper memories to find the standard deviation. (Round your answer to four decimal places.) Calculate the range. 10 Enter an exact number. The range is approximately how many standard deviations? (Round your answer to one decimal place.) The range is approximately standard deviations