Which of the following is most likely to cause the negative effects described in the excerpt?

What causes the cyclical changes in the appearance of the moon?

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

Can someone me with this plz? ! i'm putting 20 points on it!