Posted by Chelsea on Tuesday, March 6, 2012 at 8:06pm.
If the mean score on a set of 24 tests is 81and two more students took the test and score a 70 and a 59 what would be the new mean?

MATH  Damon, Tuesday, March 6, 2012 at 8:12pm
easy way
26 tests, 24 *81 + 70 + 59 = 2073
2073/26 = 79.7

MATH  Ms. Sue, Tuesday, March 6, 2012 at 8:12pm
24 * 81 = 1944
(1,944 + 70 + 59)/26 = ?

MATH  chelsea, Tuesday, March 6, 2012 at 8:17pm
Thank you both for helping me with this problem.

MATH  Ms. Sue, Tuesday, March 6, 2012 at 8:25pm
You're very welcome.
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