Does the equation below represent a relation, a function, both a relation and a function, or neither a relation nor a function?

a.
neither a relation nor a function
b.
both a relation and a function
c.
function only
d.
relation only

Someone . me. compound probability

Average acceleration: i have no idea how to do this.

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).