Consider the random variable x whose probability distribution is given below:

x | pr(x=x)

1 | 0.5

3 | 0.35

5 | 0.1

7 | 0.05

what is the probability that x is at most 6.7? what is the probability that x is at least 6.7?

the answer is 1/4

step-by-step explanation:

the answer is 13/48

step-by-step explanation:

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)