The scores of 10 students in a test, out of maximum marks 50 are 28, 36, 34, 23
48, 22, 35, 27, 19, 41. Find the variance.
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Step-by-step explanation:
total no of observation=10
favourable outcomes= 28,36,34,28,48,22,35,27,19,41
Step-by-step explanation:
variance= favorable outcome/total no of outcomes
=28+36+34+28+48+22+35+27+19+41/10
=318/10
=31.8
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