The mean of 20 numbers is 18.if 2is added to each number ,what is the new mean?
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Mean of 20 number is 18.
total number = 360
2 is added to each 20 number
i.e 40 is added to total.
now new total number is 400.
New mean is 400/20= 20
◆◆Hope this helps◆◆
total number = 360
2 is added to each 20 number
i.e 40 is added to total.
now new total number is 400.
New mean is 400/20= 20
◆◆Hope this helps◆◆
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