Probability Distributions of Discrete Random Variables Determine which of the following functions is a probability distribution function $($pdf$)$: a$.$ b$.$ c$./$r$/$n Probability Distributions of Discrete Random Variables Determine which of the following functions is a cumulative distribution function $($cdf$).$ a$.$ b$.$ c$./$r$/$n Probability Distributions of Discrete Random Variables A discrete randiom variable X has the following probability distribution function $($pdf$)$ Complete the cumulative distribution function $($cdf$)$ for X$./$r$/$n Probability Distributions of Discrete Random Variables A discrete random variable X has the following cumulative distribution function $($caf$)$ Complete the probability distribution function $($pdf$)$ for X$./$r$/$n Probability Distributions of Discrete Random Variables A discrete random variable X has the following incomplete probability distnbution function $($pdf$)$ Determine the missing probability a$.$ a$=/$r$/$n Probability Distributions of Discrete Random Variables A probablity distribution function is given by P$($X$=$x$)=$k$(6-$x$),$ x$=0,1,2,3,4,5,6$ Determine the value of k : k$=$