What sample size should be obtained if he wants to be within 4 percentage points with ​95% confidence if he uses an estimate of ​52% obtained from a​ poll?

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол