please explain hows these are correct

Daily high temperatures in St. Louis for the last week were as follows: 95, 92, 94, 95, 97, 90, 93 (yesterday). a) The high temperature for today using a 3-day moving average = 93.3 degrees (round your response to one decimal place). b) The high temperature for today using a 2-day moving average = 91.5 degrees (round your response to one decimal place). c) The mean absolute deviation based on a 2-day moving average = 2.3 degrees (round your response to one decimal place). d) The mean squared error for the 2-day moving average = 9.4 degrees? (round your response to one decimal place). e) The mean absolute percent error (MAPE) for the 2-day moving average = 2.1% (round your response to one decimal place)