Parametric equations: Consider the equation (m2-4)x= m-2

a) Find m so that is a solution for the above equation
b) Show that for m2- 2, the above equation admits a unique solution

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample