To inspect manufacturing processes, companies typically examine samples of parts for deficiencies. One company that manufactures ballpoint pens selected samples of 1000 pens on each of 9 days. The company recorded, for each sample of 1000, the number of defective pens in the sample. Here are their data:

19, 21, 5, 7, 7, 23, 3,7, 14

What is the mean and media of this data?

How many modes does the data set have, and what are their values? Indicate the number of modes by clicking in the appropriate circle, and then indicate the value(s) of the mode(s), if applicable.