Question

A disk drive manufacturer estimates that in five years a storage device with 1 terabyte of capacity will sell with a probability of 0.511, a storage device with 500 gigabytes of capacity will sell with a probability of 0.291, and a storage device with 100 gigabytes of capacity will sell with a probability of 0.198. The revenue associated with the sales in that year is estimated to be $51.1 million, $27.1 million, and $13.8 million, respectively. Let X be the revenue of storage devices during that year, in millions of dollars. Determine the cumulative distribution function at specified points. Round your answers to three decimal places (e.g. 98.765). F(13.8) = P(X ≤ 13.8) = F(27.1) = P(X ≤ 27.1) = F(51.1) = P(X ≤ 51.1) =

          A disk drive manufacturer estimates that in five years a storage device with 1 terabyte of capacity will sell with a probability of 0.511, a storage device with 500 gigabytes of capacity will sell with a probability of 0.291, and a storage device with 100 gigabytes of capacity will sell with a probability of 0.198. The revenue associated with the sales in that year is estimated to be $51.1 million, $27.1 million, and $13.8 million, respectively.

Let X be the revenue of storage devices during that year, in millions of dollars. Determine the cumulative distribution function at specified points. Round your answers to three decimal places (e.g. 98.765).

F(13.8) = P(X ≤ 13.8) = 
F(27.1) = P(X ≤ 27.1) = 
F(51.1) = P(X ≤ 51.1) =

Added by Christine W.

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