On the first of each month, stacie runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table:

jan 41.55 july 36.38
feb 42.51 aug 38.48
mar 43.01 sep 41.87
apr 39.76 oct 51.32
may 37.32 nov 42.59
june 35.28 dec 43.71

determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place.
1.21
0.93
40.98
40.22