Time Portfolios Week 1 6 Week 2 5 Week 3 6 Week 4

     Time                            Portfolios

     Week 1                              6

   Week 2                                5

  Week 3                                 6

 Week 4                                  7

Week 5                                   9

Week 6                                  8                                                      

Week 7                                  6

Week 8                                10

Week 9                              12

Week 10                             11

Week 11                             89

Sum                             8.090909091

Average                      2.30019762

      Standard Deviation

1.     Calculate the sum, mean, and standard deviation of the series using Excel mathematic equations.