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  • 24-06-2024
  • Mathematics
Answered

Scores on a previous final exam for ST370 were normally distributed with a mean of 71 and a standard deviation of 9. The probability that a randomly selected student scored at least 77 in the exam is about:_____
A. 0.67
B. 0.97
C. 0.14
D. 0.25



Answer :

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