A Researcher Is Using a Random Number Table to Pick

question 27

Multiple Choice

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 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

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Definitions:

Standard Deviation

The statistical measure that quantifies the dispersion or variability within a data set.

Mean

The arithmetic average of a set of numbers, calculated by adding them together and dividing by the count of the numbers.

Z-score

A numerical metric indicating how a specific value compares to the average of a dataset, expressed by the number of standard deviations away from that average.

Standard Deviation

An indicator of the spread or variability within a data set; where a small standard deviation indicates values closely clustered around the average, and a large standard deviation suggests they are widely scattered.