What is the equation of the least squares regression line fir the data set?
a- y= -2.984x + 112.38
b- y= 2.984x + 112.38
c- y= -0.756x + 112.38
d- y= 112.38x - 2.984

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

How do you solve a question like this?

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t