Question

Ellie wants to know how much her mother spends on groceries weekly. She has the receipts from 12 weeks.

Which measure of central tendency should be used to calculate the average amount spent per week?

range
mean
median
mode

Answer 1

m

Answer 2

k ,kk k,

Answer 3

plplooik

Answer 4

vuhiuv

Answer 5

off the bat, I would eliminate range (that is not a measure of central tendency, it's a measure of spread) and mode (it is unlikely that any of the receipts would have the exact same price, so there would be no mode)

within a 12 week timespan, there is a high chance there will be some event/holiday, etc. that causes an outlier.

so which measure is resistant to outliers? mean or median?