Answer:
No; the study is based on a volunteer sample, which may be very different from a randomly selected one.
Explanation
Her plan cannot be effective because she could base her own judgenent on samples that was randomly selected for consideration.
The correct answer that would best complete the given statement above would be the word GREEN SPACE. Studies have shown that access to green space <span>and participation in outdoor activities is beneficial to one’s health and well-being. Green space refers to an area or place where tress, grass and other kinds of vegetation are grown for r</span><span>ecreational purposes. Hope this answer helps.</span>
The answer would be "B. cocaine". Cocaine is an illegal stimulant unlike the other options listed above.
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