If mean of 150 observations is 26. If 4 is added to each observation and then each of them is multiplied by 1.5, then new mean is
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Step-by-step explanation:
mean =26
when each no. increased by 4 teh mean also gets increased by 4
mean = 26+4=30
when each no is multiplied by 1.5, mean also gets multiplied by 1.5
mean = 30×1.5 = 45
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