Question

In: Computer Science

Past experience has shown that, on the average, only one in ten wells drilled hits oil. Let X be the random variable that represents the number of drillings until the first success (oil is struck). Assume that the drillings represent independent events.

(a) List the elements of the sample space for 5 drillings or less. Use W for “success”and F for “failure” in finding an oil well. Is this a discrete sample space Explain.
(b)Assign a value to each sample point and find the probability mass function for 5 drillings or less.
(c) Express the probability function as a formula for x = 1,2,3 ... ∞.
(d)Find P(X = 10) using the formula.

Solutions

Expert Solution

ontinuos random variable whose probability density funtion (pdf) is given by i Show that k [3] Find P (X< 1) [3] ii Find the mean for X . [4]1.) Let Y be a discrete random variable with probability mass function (pmf) given by: 2 3 4 P (Y=y) 0.1 a 0.20.5 y i.) Determin


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