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April 18, 2014

Homework Help: Math for the middle school and elementary teacher

Posted by liz on Tuesday, February 28, 2012 at 8:55pm.

A prof. teaches 2 calc. classes. The first class has 25 students and their mean on the 1st test was an 82. The 2nd class has 15 students and their mean on the same test was a 74. What is the mean on this test if the prof. combines the score for both classes?

Is the answer the mean cannot be calculated since the individual scores of each student are not available.

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