In this exercise, you are asked to verify that the sum of the joint probabilities in a row or column of a joint probability distribution equals the marginal probability in that row or column Consider the following joint probability distribution a Explain why R1 (R1 C1) or middot middot middot middo...

a A member of the population or sample that belongs to category R1 must also belong to ...

In this exercise, you are asked to verify that the sum of the joint probabilities in a

Question:

In this exercise, you are asked to verify that the sum of the joint probabilities in a row or column of a joint probability equals the marginal probability in that row or column. Consider the following joint probability

a. Explain why
R1 = (R1 & C1) or ····· or (R1 & Cn)
b. Why are the events (R1 & C1), . . . , (R1 & Cn) mutually exclusive?
c. Explain why parts (a) and (b) imply that
P(R1) = P(R1 & C1)+ ··· + P(R1 & Cn).
This equation shows that the first row of joint probabilities sums to the marginal probability at the end of that row. A similar argument applies to any other row or column.

In this exercise, you are asked to verify that the sum of the joint probabilities in a

Question:

Step by Step Answer:

Introductory Statistics

In this exercise, you are asked to verify that the sum of the joint probabilities in a

Question:

Cn P(Ri) RPIR P(Cn)

Step by Step Answer:

a A member of the population or sample that belongs to category R1 must also belong to ...View the full answer

Introductory Statistics

Students also viewed these Statistics questions