7
QuizMultiple Choice

How to Experiment Well

Question 7 • Academy - Algebra, Functions, and Data Analysis

Aeronautical researchers have developed three different processes to pack a parachute. They want to compare the different processes in terms of time to deploy and reliability. There are 1,200 objects that they can drop with a parachute from a plane. Using a table of random digits, the researchers will randomly place the 1,200 items into three equally sized treatment groups suitable for comparison.

Answer
A
1–3
B
1–1200
C
0000–1200
D
0000–1199

Explanation

Label the 1,200 objects with distinct four-digit numbers from 0000 through 1199. This gives exactly 1,200 labels, which can be randomized and divided into three groups of 400. The range 0000–1200 includes 1,201 numbers, so it is too large.

AI-written and checked against the verified answer.

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