Answer:
W=3
Step-by-step explanation:
(6w + 4w)/48=5/8(taking lcm) 
6w+4w=5/8*48
10w=30
W=3
Thanks for putting qsn, makes me remember this againa
 
        
             
        
        
        
Answer:
a) 
b) 
And replacing we got:
![P(X \geq 3) = 1- [0.2+0.3+0.1]= 0.4](https://tex.z-dn.net/?f=%20P%28X%20%5Cgeq%203%29%20%3D%201-%20%5B0.2%2B0.3%2B0.1%5D%3D%200.4)
c) 
d) 
e) 
f) 
And replacing we got:

And the variance would be:
![Var(X0 =E(X^2)- [E(X)]^2 = 6.4 -(2^2)= 2.4](https://tex.z-dn.net/?f=%20Var%28X0%20%3DE%28X%5E2%29-%20%5BE%28X%29%5D%5E2%20%3D%206.4%20-%282%5E2%29%3D%202.4)
And the deviation:

Step-by-step explanation:
We have the following distribution
x      0     1     2   3   4
P(x) 0.2 0.3 0.1 0.1 0.3
Part a
For this case:

Part b
We want this probability:

And replacing we got:
![P(X \geq 3) = 1- [0.2+0.3+0.1]= 0.4](https://tex.z-dn.net/?f=%20P%28X%20%5Cgeq%203%29%20%3D%201-%20%5B0.2%2B0.3%2B0.1%5D%3D%200.4)
Part c
For this case we want this probability:

Part d

Part e
We can find the mean with this formula:

And replacing we got:

Part f
We can find the second moment with this formula

And replacing we got:

And the variance would be:
![Var(X0 =E(X^2)- [E(X)]^2 = 6.4 -(2^2)= 2.4](https://tex.z-dn.net/?f=%20Var%28X0%20%3DE%28X%5E2%29-%20%5BE%28X%29%5D%5E2%20%3D%206.4%20-%282%5E2%29%3D%202.4)
And the deviation:

 
        
             
        
        
        
Answer: Lemme get them socials
Step-by-step explanation: Was goof
 
        
                    
             
        
        
        
Answer:
|x - 5| = 2 
Step-by-step explanation:
Since we are not given a zero on the number line, we do the following:
Average = midpoint between two numbers on the number line
For this number line,
Average = 3 + 7 ÷ 2
Average = 5
Next we find how many units away are each number from the middle:
3 is 2 units away from 5
7 is 2 units away from 5
Units away = 2
Let's use the formula:
|x - average| = Units away 
Substitute values into equation
|x - 5| = 2 
Now we solve 
Solve for x over the integers:
|x - 5| = 2 
Split the equation into two possible equations:
x - 5 = 2 or x - 5 = -2
Add 5 to both sides:
x = -5 + 5 = 2 + 5 or x - 5 + 5 = -2 + 5
Answer: 
x = 7 or x = 3
LOOK AT THE GRAPH AND NUMBER LINE
 
        
             
        
        
        
9514 1404 393
Answer:
   55,637.8 square inches
Step-by-step explanation:
We can find side n using the Law of Sines:
   n/sin(N) = p/sin(P)
   n = p(sin(N)/sin(P)) = 600·sin(64°)/sin(96°)
   n ≈ 542.246913 . . . . inches
The angle O is ...
   O = 180° -N -P = 180° -64° -96° = 20°
Then the area is ...
   A = 1/2·np·sin(O)
   A = (1/2)(542.246913 in)(600 in)·sin(20°) ≈ 55,637.81008 in²
The area of ∆NOP is about 55,637.8 in².