74 89 80 93 64 67 72 70 66 85 89 81

81 71 74 82 85 63 72 81 81 95 84 81

a). Find Stem and Leaf

b). Find 5 classes

c).Tally

d).Frequency

e). Relative Frequency

f). Histogram

g). Mean

h). Mode

i). Median

j). Range

k). Standard Deviation of the Population

l). Standard Deviation of the Population

m). Variance of the Sample

n). Variance of the Population

Please show all of the detail, step-by-step work to get full credit. Thank you.