If one check was written and one deposit was made into an account in one day, the account’s ending balance on that day its starting balance on that day. a. might be less than b. must be less than c. cannot be less than d. none of the above if someone could me i would appreciate! i will mark brainliest!

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old