Trinity Has Been Recording the Number of Times She Says

Multiple Choice

Trinity has been recording the number of times she says "um" for the last 7 days to help improve her public-speaking grade. She recorded the following data for the last 7 days: 23, 27, 12, 10, 5, 5, 5. What is the approximate average number of times she says "um" over the 7-day period?

A) 12
B) 15
C) 17
D) 22