Author Question: The time between major earthquakes in a particular region of the Mediterranean is a random variable ... (Read 108 times)

jessicacav · **on:** Jun 16, 2021

Question 1

The mean clotting time of blood is 7.35 seconds, with a standard deviation of 0.35 seconds. What is the probability that blood clotting time will be less than 7 seconds? Assume the distribution is normal.
◦ 0.16
◦ 0.14
◦ 0.15
◦ 0.84

Question 2

The time between major earthquakes in a particular region of the Mediterranean is a random variable with probability density function f(x) =

e^-x/1600 for x in [0, ∞), where x is measured in days. Find the expected value and the standard deviation of this probability density function.
◦ μ = 1600 days; σ = 3200 days
◦ μ = 3200 days; σ = 2262.4 days
◦ μ = 1600 days; σ = 2262.4 days
◦ μ = 1600 days; σ = 1600 days

Jane · **Reply #1 on:** Jun 16, 2021

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