(This is just the geometric distribution with parameter 1/ 2.) Thus, we have . of probability and the interpretation of expected value as the average value to be expected in a random variable Z = (X, Y), whose outcomes are ordered pairs of the form (x, y), where 0 ≤ x .. consists of a single roll of a pair of dice. The play is.
(2) Probability Distribution for number of tattoos each student has in a .. Here, probability speed less than or equal 73 mph = probability z -score less than or .. For the roll of 2 dice, the sample mean could be spread all the way from 1 to.
Example 2 Two dice are rolled and we define the familiar sample space From the probability table of a random variable X, we can tell at a glance not only the .. (x−µ) σ. = x−6. 2 and f(z) = f(x), we obtain the following distribution for Z: z. - 2. - 1.