Answer:
Expected value =0.9
Standard deviation = 0.4359
Step-by-step explanation:
Let's use the formula to find expected value or mean.
Expected value =Σ x *P(x)
x 0 1 2
P(x) ) .15 .8 .05
So, expected value = (0)(0.15) +1(0.8)+2(0.05)
= 0 +0.8 +0.1
=0.9
Expected value =0.9
Now, let's find standard deviation
x
0 =0.1215
1 =0.008
2 =0.0605
Now, add the last column together and then take square root to find standard deviation.
Standard deviation of the distribution =
Simplify it, so standard deviation =0.4358898...
Round the answer to nearest four decimal places
Standard deviation = 0.4359
Answer:
12)
11)
10)
9)
8)
7)
6)
5)
4)
3)
2)
1)
Step-by-step explanation:
12)
y - 4 = −(x - 4)
y - 4 = −x + 4
+ 4 + 4
__________
_______________________________________________
11)
y + 2 = 12(x + 2)
y + 2 = 12x + 24
- 2 - 2
____________
_______________________________________________
10)
y - 1 = 5(x - 1)
y - 1 = 5x - 5
+ 1 + 1
_________
_______________________________________________
9)
y - 5 = −2(x + 2)
y - 5 = −2x - 4
+ 5 + 5
___________
_______________________________________________
8)
y - 5 = 2(x + 2)
y - 5 = 2x + 4
+ 5 + 5
__________
_______________________________________________
7)
y + 4 = 12(x - 2)
y + 4 = 12x - 24
- 4 - 4
____________
_______________________________________________
6)
4x - 3y = −6
-4x - 4x
__________
−3y = −4x - 6
___ _____
−3 −3
_______________________________________________
5)
4x - y = 2
-4x - 4x
_______
−y = −4x + 2
_______________________________________________
4)
x - y = 0
______
−y = −x
_______________________________________________
3)
7x - 5y = 35
-7x - 7x
_________
−5y = −7x + 35
___ ______
−5 −5
_______________________________________________
2)
2x - y = 4
-2x - 2x
_______
−y = −2x + 4
_______________________________________________
1)
2x - 3y = 24
-2x - 2x
_________
−3y = −2x + 24
___ _______
−3 −3
I am delighted to assist you anytime.
The answer is 85.Alternate Interior angles theorem.
Answer:
(2.1)
Step-by-step explanation:
assuming your period (.) is actually a comma in the U.S. it would be the coordinate (2,1) where x =2 and y =1.
Answer:
4 cups
Step-by-step explanation:
in order to convert 32 ounces into cups, you must divide 32 by 8. this will give you 4, your answer.
If this helps, please mark me brainliest. :)