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The mean weight of 21 students is 21 kg. If a student weighing 21 kg is removed from the group,then the mean of of the remaining students is(a) 20 kg (b) 21 kg (c) 19 kg (d) 18 kg |
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Answer» The mean weight of 21 students is 21 kg. If a student weighing 21 kg is removed from the group, then the mean of of the remaining students is (a) 20 kg (b) 21 kg (c) 19 kg (d) 18 kg |
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