A class was surveyed about what kinds of pet they own.
What kind of data are the survey results?
A class was surveyed about how many people live in their house.
A class was surveyed about how much their schoolbag weighs.
Laura has $7$7 red marbles, $3$3 white marbles, $9$9 yellow marbles, $14$14 black marbles, and $7$7 blue marbles.
Represent this information in the column graph below.