Question

mean of 18 numbers is 57 if 9 is added to each numbers, find the new mean

Answer 1

Answer:

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mean of 18 numbers is 57. If 9 is added to each number find the new mean. Hence, the new mean is 66

Answer 2

Answer:

57 + (18*9)18 = 57+9= 66......hope this helps you

Step-by-step explanation:

generally, when a number is added to all the values , automatically it gets added to the mean also