Here is a data set to use for the problems below: 77.6, 61.2, 65.2, 86.7, 55.2, 86.7, 67.2, 59.7, 45.3, 86.7 What is the mean of this data set? mean = (Round to one decimal place.) What is the median of this data set? median place.) What is the mode of this data set? mode = place) (Round to one decim (Round to one decimal