In a 20 item true-false examination, if 12 correct answers constitute a passing grade, what is the probability that someone will pass, if they are guessing?

A. 0.8398
B. 0.1201
C. 0.2517
D. 0.1316

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

There are 10 chicks on ginger's farm .she has 2 chicks in one outdoor pen and 5 chicks in another. the rest of the chicks are in the barn. what is the fraction of total chicks in outdoor pens?

What is the slope of the line? the graph shows the relationship between the volume of a rectangular prism and the volume of a square pyramid with an identical base and height. prism vs. pyramid prism volume (cubic units) + 1 2 3 4 5 6 7 8 9 10 pyramid volume (cubic units)