Rufus conducted a study in which he evaluated life satisfaction among patients with a history of cancer. He found that the mean score was 21 out of 35, with a standard deviation of 12 points. What does this large standard deviation tell us?
A. Adults with a history of cancer have low life satisfaction.
B. Adults with a history of cancer have high life satisfaction.
C. Adults with a history of cancer have a wide range of life satisfaction scores.
D. Adults with a history of cancer all have similar life satisfaction scores.
Answer: C
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