The Journal Data contains monthly weather data for a Manchester, NH, weather station. This was downloaded from the NOAA, the federal government agency that includes the U.S. National Weather Service.
For your first journal entry, consider the variable TPCP. That is the total precipitation, in tenths of a millimeter, for the month. For example, a value of 619 in TPCP means that it rained 61.9 millimeters that month, or about 2.4 inches. Draw a histogram of TPCP. Estimate by eye the lowest and the highest data values from the graph (do not calculate; instead, estimate from your graph). Are there any outliers?
Keep on looking at the variable TPCP. Calculate the mean and median value of TPCP. Calculate the variance and standard deviation of TPCP. What do these four numbers mean for the National Weather Service or a weather forecaster?
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