The mean marks of 30 students in a class is 58.5. Later on it was found that 75 was wrongly recorded as 57. Find the correct them. December 26, 2021December 26, 2021 administrator A. 57.4B. 57.5C. 58.9D. 59.1Check AnswerD. 59.1 Share the PostRelated Posts:The average marks of a class of 30 students is 40…The arithmetic mean of the scores of a group of…The average height of 35 boys in a class was…The mean of 50 observations was 36. It was found…The average of the marks of 12 students in a class…The average mark of the students of a class in a…