Multiple Choice
A research article reports that the number of group treatment sessions attended by a sample was normally distributed, with a mean of 20 and a standard deviation of 6. Which of the following statements is/are true about the sample?
A) Over 75% attended at least 20 sessions.
B) Over one-third attended more than 26 sessions.
C) Slightly more than 15 % attended less than 14 sessions.
D) Slightly more than 15 % attended less than 8 sessions.
Correct Answer:
Verified
Correct Answer:
Verified
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