Suppose the log-ins to a company's computer network follow a Poisson process with an average of three counts per minute. What is the mean time between counts? What is the standard deviation of the...

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Extracted text: Suppose the log-ins to a company's computer network follow a Poisson process with an average of three counts per minute. What is the mean time between counts? What is the standard deviation of the time between counts? a. E(X) = 0.333, SDX) = 0.333 O b. E(X) = 0.333, SD(X) = 0.111 Oc. E(X) = 3, SD(X) = 3 O d. NONE