4. In a chicken farm, the weight of the eggs show a normal distribution with a meanX and a standard deviation σ. 5 % of the eggs have a weight greater than 85 g while 10% of them are less than 25 g. Determine the arithmetic mean and standard deviation of the eggs. (15 points) 5. Reynolds number for pipe flow may be expressed as Re (4 m/ Td)/u where m = mass flow, kg/s d pipe diameter, m μ-viscosity, k/m s In a certain system, the flow rate is 5.448 kg/min 0.5 %, through a 0.5″ (inch) diameter ( 0.005″). The viscosity is 1.92x 105 kg/m s, t1 %. Calculate the value of the Reynolds Number and its uncertainty. Determine the main contribution to uncertainity.(10 points)