- Given the probability function P(x)=5-x//10, for x=1,2,3,4 find the mean and standard deviation.?

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How old will you be in 10 years? What is the final temp (in oC) when 20.0 g of water at 25°C is mixed with 30.0 g of water at 80.°C? Specific heat of water is 4.184 J/goC.? Calculate stress and strain in round bar 12mm in diameter and 150mm long with tensile force of 400N acting on it? How many atoms are in 7.10 mol of copper (II) phosphate? What is ∞^0? What is 0∞?