What happened to the tutors!

Can any one me with the answers to these questions asap?

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

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?