- A65
- B64
- C62.5
- D67
Step-by-Step Solution
Top 10 total 880, bottom 10 total 370, everyone 3200. Middle 30 ; mean .
Answer: A) 65
A class of 50 students has a mean of 64 marks. The top 20% of students averaged 88 and the bottom 20% averaged 37. What is the mean of the remaining students?
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