10
QuizMultiple Choice

Simple Random Sample

Question 10 • VA-Probability and Statistics

The owner of a greenhouse wants to test the effectiveness of a new fertilizer on African violets. She has 60 violet seedlings that were grown for 8 weeks. She wants to test the new fertilizer on 10 of the plants, and decides to use a random number table to select a simple random sample. She labels the violets 01–60. Refer to the given line from a random number table. Which numbers represent the first 5 plants selected?60633 78034 99602 83440 55120 61551

Answer
3
33, 03, 49, 02, 40
0
06, 33, 03, 49, 02
6
60, 63, 37, 80, 34
6
60, 37, 34, 28, 40

Explanation

Read the table digits in two-digit groups: 60, 63, 37, 80, 34, 99, 60, 28, 34, 40. Keep numbers from 01 to 60, skipping numbers above 60 and any plant number already selected. The first five distinct valid numbers are 60, 37, 34, 28, and 40, so the correct choice is D.

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