The mean of five numbers is 8.2. Four of the numbers are 8, 10, 12, and 10.
Work out the fifth number.
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Step-by-step explanation:
mean=
totalno.ofobservation
sumofobservation
8.2=
5
8+10+12+10+x
8.2×5=40+x
41=40+x
x=41−40=1
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