3. The mean of 12 numbers is 7. If 2 is added to each of the numbers, what will be the new mean
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Answer:
9
Step-by-step explanation:
mean of the observations: 12*7 =84
no.of observations:12
we have to 2 to every number
total numbers is 12
so we have to add 24. (12*2)
mean=84+24/12
mean = 9
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