Grasses and mosses sprout in alaska’s tundra in summer when

a. the soil is fertile

b. rainfall is adequate

c. the top layer of soil freezes

b. the top layer of soil thaws

The answer is d the box plots show the data distributions for the number of customers who used a coupon each hour during a two-day sale. which measure of variability can be compared using the box plots? interquartile range standard deviation mean median