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OpenStudy (anonymous):
please help ?!?!?! A set of normally distributed data has a mean of 485 and a standard deviation of 11.6. Find the probability of randomly selecting 40 values and getting a mean less than 490. A. 0.9968 B. 0.8389 C. 0.6664 D. 0.0032
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OpenStudy (anonymous):
@pinkbubbles
OpenStudy (anonymous):
i'm not sure sorry maybe @SolomonZelman can help c:
OpenStudy (anonymous):
@mathstudent55
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