easy way
26 tests, 24 *81 + 70 + 59 = 2073
2073/26 = 79.7
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?
4 answers
24 * 81 = 1944
(1,944 + 70 + 59)/26 = ?
(1,944 + 70 + 59)/26 = ?
Thank you both for helping me with this problem.
You're very welcome.