A researcher is using a random number table to pick between two groups labelled X and Y. Each group is to be chosen with the same probability (0.50). The researcher assigns the odd digits {1, 3, 5, 7, 9} to X
And the even digits {2, 4, 6, 8, 0} to Y. The researcher uses this section of a random number table
6 5 9 5 2 5 5 8 7 5
What are the first and second choices?
A) The first choice is X and the second choice is X
B) The first choice is X and the second choice is Y
C) The first choice is Y and the second choice is X
D) The first choice is Y and the second choice is Y

Question

Quizplus · Accepted Answer

The odd digits are assigned to X and the even digits are assigned to Y. Looking at the sequence of numbers given, we can see that the first number is 6, which is even and therefore assigned to group Y. Therefore, the first choice is Y. The second number is 5, which is odd and assigned to group X. Therefore, the second choice is X. This corresponds to choice C, where the first choice is Y and the second choice is X.

A Researcher Is Using a Random Number Table to Pick