He base of a shipping drum is in the shape of a circle with a diameter of 22 inches. which of the following is closest to the circumference of the base of the shipping drum? (use 3.14 for .)

circumfrense = 2nr

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