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The first statistics exam had a mean of 75 and a standard deviation of 16 points; the second had a mean of 80 and a stan
Posted: Wed May 11, 2022 2:47 pm
by answerhappygod
- The First Statistics Exam Had A Mean Of 75 And A Standard Deviation Of 16 Points The Second Had A Mean Of 80 And A Stan 1 (24.79 KiB) Viewed 24 times
The first statistics exam had a mean of 75 and a standard deviation of 16 points; the second had a mean of 80 and a standard deviation of 4 points. Anna scored a 81 on both tests. Megan scored 89 on the first exam and 73 on the second. They both totaled 162 points on the two exams, but Anna claims that her total is better. Explain. The total of Anna's z-scores is , which is greater than Megan's total of 1 (Round to one decimal place as needed.)