Which equation of the least squares regression line most closely matches the data set? yˆ=3.5x−6921.2 yˆ=5.5x+52 yˆ=−2.2x+13.8 yˆ=0.17x−13.2 x. y 2. 65 4. 74 6 81 8. 96 10. 109 plz (30p)

Abilliard ball is struck by a cue. it travels 1 0 0 cm 100cm before ricocheting off a rail and traveling another 1 2 0 cm 120cm into a corner pocket. the angle between the path as the ball approaches the rail and the path after it strikes the rail is 4 5 ∘ 45 ∘ . how far is the corner pocket from where the cue initially struck the ball? do not round during your calculations. round your final answer to the nearest centimeter.

Random variables x poisson~ ( a) ,y poisson ~ ( a) . x and y are independent. if 2 1, 2 1. u =2x+ y-1, v=2x- y +1. find: ) cov (u ,v ).

Explain what h(10) means in the context of the real-world scenario, and how to find its value.