HELP ASAP 60 points ACELLUS WILL MARK BRAINLEST Find the expected value of the random variable with the
following probability distribution:
Х
0
1
2
3
4
5
6
7
8
Р
.03
.15
.27
.20
.13
.10
.07
.03
.02
[?]
HELP

answer has ri be .20

Step-by-step explanation:

3.1

Step-by-step explanation:

answer:   the paragraph proof is mentioned below.

step-by-step explanation:

given: in a δxwy where

such that, ∠wzx ≅ ∠yzx and zw≅zy

we have to prove that: segment zx is a perpendicular bisector of segment wy.

prove: since, zw≅zy ⇒ ∠wzy is a supplementary angle.

then, ∠wzy= 180°

⇒∠wzx + ∠yzx = 180° ( because xz divides ∠wzy into two parts)

but, ∠wzx ≅ ∠yzx ( given)

⇒∠wzy+∠wzy=180° ( by substitution)

⇒2∠wzy=180°

⇒∠wzy=90°

⇒∠wzy=∠yzx =90°

therefore, xz⊥wy where wz=zy

⇒zx is a perpendicular bisector of wy.

2+2=4

4-5=-1

is that your