Assume that in one of the classes the student has earned test scores of 77 83 51 78 and only one test remains a If the student needs a mean score of 70 to earn a C then what must the student obtain on the final test b If the student needs a mean score of 80 to earn a B then what must the student obtain on the final test a The student must obtain a Type a whole number on the final test to get a C