The mean of 30 numbers is 18. What will be the new mean, if each observation is
increased by 2....
Mathematics, 14.12.2020 09:00 carswellml
The mean of 30 numbers is 18. What will be the new mean, if each observation is
increased by 2.
Answers: 1
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If 7x=9y, y/z = 7/5 , then x/z = (a) 2/7 (b) 7/9 (c) 9/5 (d) 9/7 (e) 5/9
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