A stock solution of hydrochloric acid (HCI) supplied by a certain vendor contains small amounts of several impurities, including copper and nickel. Let X denote the amount of copper and let Y denote the amount of nickel, in parts per ten million, in randomly selected bottle of solution. Assume the joint probability density function of X and Y is given by:

f(x, y) = K(x+y)2 0< x <1and 0
= 0 Otherwise

Find the probability that P(X?0.5 and Y?0.3)
Find the correlation coefficient between X and Y.

the amount you'd have after the work is $1.55

step-by-step explanation:

you subtract 95% from $31.

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation:

his first public project he is asked to create a small scale drawing. the garden is a right triangle with base 25m and height 30m. are you trying to solve for the last side/hypotenuse? the irrational form of the answer would be 5\sqrt{61}

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation: