Which correlation coefficient best matches the graph?
a) r = 0.91
b) r = 0.34
c) r = -0.83
d) r = -0.25

( give right awnser. it's 11pm and im so tired and want to get this over with. i still have other homework too : /)

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Pranza plotted point a in the coordinate plane below.