Question

In: Statistics and Probability

A fair four sided die has two faes numbered 0 and two faces numbered 2. Another...

A fair four sided die has two faes numbered 0 and two faces numbered 2. Another fair four sided die has its faces numbered 0,1,4, and 5. The two dice are rolled. Let X and Y be the respective outcomes of the roll. Let W = X + Y.

(a) Determine the pmf of W.

(b) Draw a probability histogram of the pmf of W

Solutions

Expert Solution

Answer:

Given Data,

A fair four sided die has two faces numbered 0 and two faces numbered 2. Another fair four sided die has its faces numbered 0,1,4, and 5.

The two dice are rolled. Let X and Y be the respective outcomes of the roll. Let W = X + Y.

The sample space will consist of X,Y{00,01,04,05,20,21,24,25}

Thus the sample space of W which is the sum of X and Y will consist of {0,1,2,3,4,5,6,7}

Thus the pmf will be,

X P(X)
0 1/8
1 1/8
2 1/8
3 1/8
4 1/8
5 1/8
6 1/8
7 1/8


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