Section $1$ Part $4$

$4.$ a$.$ Extract the weight variable as a vector from the data frame by typing weights NCbirths $ weight

$5.$ b$.$ What units do you think the weights are in$?$

$6.$ c$.$ Create a new vector named weights$\_$in$\_$pounds which are the weights of the babies in pounds. You can look up conversion factors on the internet.

$7.$ d$.$ Demonstrate your success by typing weights$\_$in$\_$pounds $1$:$20$ and including the output in your word processing document.