What is the mean absolute deviation for the data set?
{10, 15, 18, 8, 4}

3.8

3.9

4.2

4.4

If lmn=xyz, which congruences are true by cpctc? check all that apply

Use the graph of the sine function y=2sinθ shown below

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