Giving brainliest awnser if you help me with this

When only separate discreet points are graphed it is called?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

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