Answer:
Mean = 35
Variance = 291.7
Step-by-step explanation:
Data provided in the question:
X : 1, 2, 3, 4, 5, 6
All the data are independent
Thus,
The mean for this case will be given as:
Mean, E[X] = 
or
E[X] = 
or
E[X] = 3.5
For 10 days, Mean = 3.5 × 10 = 35
And,
variance = E[X²] - ( E[X] )²
Now, for this case of independent value,
E[X²] = 
or
E[X²] = 
or
E[X²] = 
or
E[X²] = 15.167
Therefore,
variance = E[X²] - ( E[X] )²
or
variance = 15.167 - 3.5²
or
Variance = 2.917
For 10 days = Variance × Days²
= 2.917 × 10²
= 291.7
Answer:
can you send the screen shots of the choices
To distribute the 2/3, this is what you do.
2/3[8(5-2)^2 + 3*2] = (2/3)(8)(5-2)^2 + (2/3)(3*2) =
Now you can continue. You need to follow the correct order of operations.
= (2/3)(8)(3^2) + (2/3)(6)
= (2/3)(8)(9) + 4
= (2/3)(9)(8) + 4
= (6)(8) + 4
= 48 + 4
= 52
This is how I would have done it.
2/3[8(5-2)^2 + 3*2] =
= 2/3[8(3)^2 + 6]
= 2/3[8 * 9 + 6]
= 2/3[72 + 6]
= 2/3[78]
= 2 * 1/3(78)
= 2 * 26
= 52
Where it the rest of the question????
-12 and -1 are 11 units apart.
-12-(-1) = -11
The absolute value which is just the number of units is 11.
Hope this helps you
