Which relation is a function?

a. x −2 0 0 2 4
y 4 3 4 4 6

b. x 3 5 7 10 14
y 9 6 9 2 3

c. x −3 2 2 4 6
y 2 1 8 5 3

d. x −6 −1 1 1 6
y 0 6 2 −3 4

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

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

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish