The marks of 15 students in an examination out of 10 marks is as follows:
3,9,7,5,6,3,7,6,7,4,7,7,4,8,2. Find the mean and median.
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Step-by-step explanation:
mean = sum of observation ÷ no of observation 3+9+7+5+6+3+7+6+7+4+7+7+4+8+2÷15 =80.46
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