Karen had 7 items in her shopping cart with different prices. Her mean cost of these items was $4.02. At the register, she added a package of gum for $1.99. Choose ALL statements about how the price of the gum will affect the mean and median of the items she purchased. A. the mean will decrease
B. the mean will increase
C. the median will decrease
D the median will increase
E the mean will decrease and increase.