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The caffeine content of a cup of coffee in the cafeteria is a normally distributed random...

The caffeine content of a cup of coffee in the cafeteria is a normally distributed random variable with μ = 120 mg and σ = 25 mg. What is the probability that a randomly chosen cup of coffee will have more than 130 mg? Less than 100 mg? Between 95 mg and 140 mg? If the cup of coffee was the strongest 10% in caffeine content (hint: think about whether this would be above or below the mean), how many mgs of caffeine would it contain? If the cup of coffee was the weakest 20% in caffeine content (hint: think about whether this would be above or below the mean), how many mgs of caffeine would it contain?

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orchestra answered 3 years ago
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