A Researcher Is Using a Random Numbers Table to Pick

question 46

Multiple Choice

A researcher is using a random numbers table to pick between two groups labeled X and Y. X is to be chosen with probability 5/7 and Y with probability 2/7. The researcher assigns the digits 1, 2, 3, 4, and 5 to X, and she assigns the digits 6 and 7 to Y. The remaining digits are neglected. The researcher uses this section of a random number table
6 8 5 1 7 4 4 0 4 0
What are the first and second choices?

• A) The first selection is X, and the second is X.
• B) The first selection is X, and the second is Y.
• C) The first selection is Y, and the second is X.
• D) The first selection is Y, and the second is Y.

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Definitions:

Habitat Destruction

The process by which natural habitats are rendered unable to support the species present, leading to a loss of biodiversity.

Hunting

The practice or activity of chasing and killing wild animals for food, sport, or control purposes.

Farming

The practice of cultivating the land or raising stock, such as livestock or crops, to produce food and raw materials.

Insecticides

Chemical substances used to kill insects, playing a critical role in pest control and agriculture.