A Final Exam in Math 160 Has a Mean of 73

question 68

Multiple Choice

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 greater than 78.

• A) 0.8962
• B) 0.0036
• C) 0.0103
• D) 0.0008

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