Answer:
σˆ =
sPn
i=1 X2
i
2n
Step-by-step explanation:
To obtain, the maximum likelihood ratio, we use the following method.
l(σ) = Xn
i=1 "
− log 2 − log σ −
|Xi
|
σ
#
Let the derivative with respect to θ be zero:
l
0
(σ) = Xn
i=1 "
−
1
σ
+
|Xi
|
σ
2
#
= −
n
σ
+
Pn
i=1 |Xi
|
σ
2
= 0
and this gives us the MLE for σ as
σˆ =
Pn
i=1 |Xi
|
n
Again this is different from the method of moment estimation which is
σˆ =
sPn
i=1 X2
i
2n
As our answer
Answer:
a. Yes
b. Yes
c. Yes
d. No
Step-by-step explanation:
a. Because -10x+4x=6x
b. 2(12-3x)=2*12-2*3x=24-6x
c. 24 and -6x just switched places.
d. 24x-6x=18x not 24-6x
I think its b because it makes sense
Do 40x10=400. Then do 40x6=240. Lastly, add 400+240=640.
When you have a non-periodic decimal number, you can write it as a fraction. The numerator is the whole number, without the decimal separator. The denominator is a power of 10, 10^k, where k is the number of decimal digits.
So, you have

Since you only have one decimal digit.
-6 is an integer, and any integer can be written as a fraction with denominator 1:

The percentage symbol simply means "divided by 100":

-4/11 is already a fraction between integers, so it's already in the requested form.
-4.3 work like 0.7:
