A bag contains seven balls that are numbered consecutively from 2 to 8. The random variable X is the number of even-numbered balls that are selected when two balls are taken at random from the bag. a) Draw up the probability distribution table for X.
b) Find E(X) and Var(X).
c) The random variable Y is the number of odd-numbered balls selected. Show that E(Y) and E(X) are different, but that Var(Y) and Var(X) are identical

because they could drop even lower..

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

actually your concept is wrong

step-by-step explanation:

150% of x =300

150x=300×100

x=(300×100)÷150

x=200