# SOLUTION: Find the standard z- score that corresponds to the following: 80% of the distribution is below(to the left of ) this value A bag of colored blocks contains the follwowing as

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: Find the standard z- score that corresponds to the following: 80% of the distribution is below(to the left of ) this value A bag of colored blocks contains the follwowing as      Log On

 Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Algebra: Probability and statistics Solvers Lessons Answers archive Quiz In Depth

 Question 438466: Find the standard z- score that corresponds to the following: 80% of the distribution is below(to the left of ) this value A bag of colored blocks contains the follwowing assortment of colors: red(9), blue (24), orange (17), purple (6), green (0), and yellow (24). Construct the probability distribution for x. Construct a scatterpoint for the (x,y) values below, and answer the following questions. x 1,2,3,4,5 y -0.5, - 1.0, -1.5, -2.0, -2.5 What would be the slope of this regression line? Would the correlation between x and y be positive or negative? How would you interpret these data in terms of linear regression? How many green elements are required to make this a legitimate probability distribution if there are a total of 50 elements in this sample? x red blue orange brown green P(x) 0.14 0.16 0.28 0.24 Answer by stanbon(57967)   (Show Source): You can put this solution on YOUR website! Find the standard z- score that corresponds to the following: 80% of the distribution is below(to the left of ) this value Ans: z = invNorm(0.8) = 0.8416 ---------------------------------------------- A bag of colored blocks contains the following assortment of colors: red(9), blue (24), orange (17), purple (6), green (0), and yellow (24). Construct the probability distribution for x. P(red) = 9/80 ; P(blue) = 24/80 ; P(orange) = 17/80... etc. --------------------------------------------- Construct a scatterpoint for the (x,y) values below, and answer the following questions. x 1,2,3,4,5 y -0.5, - 1.0, -1.5, -2.0, -2.5 --- The least-squares regression equation is y = (-1/2)x + 0 ----------------------------------------------------------------------- What would be the slope of this regression line?::: -1/2 ----------------------------------- Would the correlation between x and y be positive or negative? :: negative ------------------------------------ How would you interpret these data in terms of linear regression? As x increases by 2, y decreases by 1. =========================================================================== How many green elements are required to make this a legitimate probability distribution if there are a total of 50 elements in this sample? x red blue orange brown green P(x) 0.14 0.16 0.28 0.24 --- Let P(green) = 0.18 then # of green = 0.18*50 = 9 ======================================================= Cheers, Stan H. ==============