A meteorologist has extracted data from past weather records and has determined the probability of a given temperature for the month of April in Europe.

x P(x)

15 0.36 16 0.28 17 0.24 18 0.12 19 0.00 1.00 The temperatures are computed on a degree Celsius scale. Determine the average temperature for this given month as well as its variance. ( LO,1)