Answer:
Explanation:
To find the mean of the two low scores, we need to compare the average of the 10 remaining students (65 marks) with the actual average of the 12 students (60 marks).
The total marks of the 10 remaining students can be calculated as follows:
Total marks of 10 students = Average of 10 students * Number of students
Total marks of 10 students = 65 * 10
Total marks of 10 students = 650
The total marks of the 12 students is given as 60 * 12 = 720.
The difference between the actual total marks and the total marks of the 10 students is 720 - 650 = 70 marks.
Since 2 students were excluded, the mean of the two low scores can be calculated by dividing the difference (70 marks) by the number of excluded students (2).
Mean of the two low scores = Difference in total marks / Number of excluded students
Mean of the two low scores = 70 / 2
Mean of the two low scores = 35
Therefore, the mean of the two low scores is 35 marks.