The life expectancy (in years) for a particular brand of microwave oven is a continuous random...

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The life expectancy (in years) for a particular brand of microwave oven is a continuous random variable with the probability density function below. Find d such that the probability of a randomly selected microwave oven lasting d years or less is 0.5. 7 if x0 f(x)=(x+7) 0 otherwise The probability of a randomly selected microwave oven lasting years or less is 0.5, The life expectancy (in years) for a particular brand of microwave oven is a continuous random variable with the probability density function below. Find d such that the probability of a randomly selected microwave oven lasting d years or less is 0.5. 7 if x0 f(x)=(x+7) 0 otherwise The probability of a randomly selected microwave oven lasting years or less is 0.5,