When Ryan runs the 400 meter dash, his finishing times are normally distributed with a mean of 65 seconds and a standard deviation of 2 seconds. If Ryan were to run
36 practice trials of the 400 meter dash, how many of those trials would be between
62 and 65 seconds, to the nearest whole number?

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

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

Which term describes the point where the perpendicular bisectors of the three sides of a triangle intersect?