Question

Which data set has a greater spread? Why?
A: {38, 12, 23, 48, 55, 16, 18}
B: {44, 13, 24, 12, 56}

Answer 1

you can compute variance
if var(x)>var(y)
x has greater spread

Answer 2

step 1: mean =?
step 2: var

Answer 3

i dont understand

Answer 4

maybe compute the mean absolute deviation,not sure. The bigger the mean absolute deviation there is, the more variability there is.

Answer 5

can you find absolute deviation ?