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Answer :
Answer:
1
Step-by-step explanation:
the mean is calculated as
mean = [tex]\frac{sum}{count}[/tex]
let x be the fifth number , then
[tex]\frac{8+10+12+10+x}{5}[/tex] = 8.2 ( multiply both sides by 5 to clear the fraction )
40 + x = 41 ( subtract 40 from both sides )
x = 1
the fifth number is 1
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