2)You're employed at Mike's pizza parlor. The following details on the 7 pizzas in the oven are available to you: Three of the seven pizzas have thick crust, one with only sausage and two with only mushrooms; the remaining four have ordinary crust, two with only sausage and two with only mushrooms. Pick a pizza from the oven at random. (a) Are the occurrences of ordering a thick crust pizza and ordering a mushroom pizza disjoint? Explain.

(a) Are the occurrences of ordering a thick crust pizza and ordering a mushroom pizza independent? Explain.