The data (1,5,8,5,1} represent a random sample of the number of days absent from school for five students at Monta Vista High. Find the
mean and standard deviation of the data.
Select one:
a. mean = 4; standard deviation = 2.68
b.mean = 4: standard deviation = 7.2
c. mean = 20: standard deviation = 7.6
d. mean = 4.4; standard deviation = 2.76