The constant of proportionality in an equation can never be 0.
homemade

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

chad should not have included the values (1, 2) and (3, 6) because that would mean he only had half a healing card.