In a freshman class of 80 students,22 students take Consumer Education,20 students take French, and 4 students take both. Which equation can be used to find the probability, P, that a randomly selected student from this class takes Consumer Education, French, or both? A: P = 11/40 + 1/4 + 1/20

B: P = 11/40 + 1/4

C: P = 11/40 + 1/4 - 1/20

D: P = 11/40 + 1/4 - 1/10

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P = 11/40 + 1/4 - 1/20

Explanation:

The formula we use is

P(A or B) = P(A) + P(B) - P(A and B)

In this case,

So,

P(A or B) = P(A) + P(B) - P(A and B)

P(A or B) = 11/40 + 1/4 - 1/20

which is why choice C is the answer

Note: P(A and B) = 1/20 which is nonzero, so events A and B are not mutually exclusive.

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925