The mean of 10 observations is 5.5. If each observation is multiplied by 4 and subtracted from 44, then what is the new …
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The mean of 10 observations is 5.5. If each observation is multiplied by 4 and subtracted from 44, then what is the new mean?
✓ Correct answer: b)
22
Explanation
New mean = 44 – 4 × 5.5 = 44 – 22 = 22
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