Knowing a Murder Victim In a sample of 1000 U. S. adults, 300 said they know a murder victim. Four U. S. adults are selected at random without
replacement. Find the probability that all four adults know a murder victim.

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?