mean of 15 observation is 18. if 2 is subtracted from each observation and then each observation is divided by 4 . then new mean of data is?
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When 2 is subtracted from each observation then new mean will also be 2 less than old mean.
Intermediate answer 18-2 = 16.
Now if each observation is divided by 4 then the new mean will also be old mean divided by 4.
Final answer (16/4) = 4
Intermediate answer 18-2 = 16.
Now if each observation is divided by 4 then the new mean will also be old mean divided by 4.
Final answer (16/4) = 4
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