Multiple Choice
Scores on an achievement test had an average of 70 and a standard deviation of 10. Serena's score was 85. Assuming the scores have approximately a normal distribution, about what proportion of students scored lower than Serena?
A) 0.93
B) 0.07
C) 0.84
D) 0.68
Correct Answer:
Verified
Correct Answer:
Verified
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