Given a variance of 30 for a data set, what is the standard deviation?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250