Assume that in your linguistics class you have earned the te
Assume that in your linguistics class you have earned the test scores 86, 77, 50, and 60 ; and only one test remains. If you need a mean score of 70 to earn a \"C\", then what minimum score must you obtain on the last test?
Solution
Total score needed = 70*5 = 350
Required score on last test = 350-86-77-50-60
=77
Therefore, minimum score needed=77
