15
(Choose 1 answer)
A final exam in Math 160 has a mean of 73 with standard deviation 7.8. If 24 students are randomly selected,find the probability that the mean of their test scores is less than 70.
Let P(Z-1.88) = 0.0301, P(Z 1.28) = 0.8997.
A. 0.9699
B. 0.1003
C. 0.8997
D. 0.0301
E. None of the other choices is correct
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