A logistics company records the number of days it requires to deliver a package. The histogram below shows the number of days it requires to deliver 36 packages.

Choose the best measures of center and spread based on the distribution.
A.
Center: mean of 4 days
Spread: standard deviation of 0.88
B.
Center: median of 2 days
Spread: interquartile range of 2
C.
Center: mean of 4 days
Spread: standard deviation of 1.49
D.
Center: median of 4 days
Spread: interquartile range of 1

B. Center: median of 2 days

Spread: interquartile range of 2