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Suppose X is normally distributed with mean 3 and variance 4.

Find the probability that 5X exceeds 17.

User Sanjo
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Final answer:

To find the probability that 5X exceeds 17, standardize the value of 17 and calculate the probability using a standard normal distribution table or calculator.

Step-by-step explanation:

To find the probability that 5X exceeds 17, we first need to standardize the value of 17. Using the formula z = (x - μ) / σ, where x is the value, μ is the mean, and σ is the standard deviation, we have z = (17 - 3) / 2 = 7.

Then, we can calculate the probability using a standard normal distribution table or a calculator. The probability is the area under the curve to the right of z = 7, which is very close to 0.

User Andrew Gable
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