1.The following are sample values collected from a study, 4, 12, 42, 16, 5, 48. Calculate the following

i.) Arithmetic mean

ii.) Mean Absolute Deviation

iii.) Harmonic mean

iii.) Weighted mean if the weights are 1.2, 2.7, 0.6, 2.1, 1.9, 1.5

respectively

iv.) The variance

v.) standard deviation