The average grade in a statistics course has been 74, with a standard deviation of 9.5. If a random sample of 62 is selected from this population, what is the probability that the average grade is more than 77? Use Appendix B.1 for the z values. (Round your z value to 2 decimal places and the final answer to 4 decimal places.) Probability 0.0028
The average grade in a statistics course has been 74, with a standard deviation of 9.5. If a random sample of 62 is selected from this population, what is the probability that the average grade is more than 77? Use Appendix B.1 for the z values. (Round your z value to 2 decimal places and the final answer to 4 decimal places.) Probability 0.0028
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 1E
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