Iasked some friends for and they didn't really understand and my teachers are confusing me as

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

18 16 11 45 33 11 33 14 18 11 what is the mode for this data set

Let x = a + bi and y = c + di and z = f + gi. which statements are true?