the marks of 20 students in a test were as follows 2,6,8,9,10,1112,13,13,14,14,15,15,15,16,16,17,18,19 and 20 calculate mean median mode
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Answer:
Here, n = 20 which is an even number.
∴ Median =2(2n)thterm+(2n+1)thterm
∴ Median =2(220)thterm+(220+1)thterm
=210thterm+11thterm
=213+14=13.5
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