In a group of 50 people 30 liked apple, 25 liked mango and 5 dislike both. use a ven diagram and find how many liked both, how many liked one​

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step-by-step explanation:

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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