In a binomial experiment, we record four students' responses on whether they believe they would get a job within four months after graduation. We denote a positive response by "Y" and a negative...

In a binomial experiment, we record four students' responses on whether they believe they would get a job within four months after graduation. We denote a positive response by "Y" and a negative response by "N". Noting that the table below does not necassarily list all of the possible outcomes, how many outcomes do possibly exist? Let X be a random variable representing the number of positive responses in the binomial experiement. Show the value of X for any outcome listed below. Outcome Value of X (Y, Y, Y, Y)
(N, Y, Y, N)
(N, N, N, N)
(N, Y, N, Y)
(Y, N, Y, N)