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denis23 [38]
3 years ago
15

Need help please........

Mathematics
1 answer:
Leni [432]3 years ago
4 0
What are the numbers?
You might be interested in
Let X1, · · · , Xn be independent identically distributed random variables with probability density function f(x) = 1 2σ exp − |
Igoryamba

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

8 0
3 years ago
Expressions and Equations
marissa [1.9K]

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

3 0
4 years ago
Obtén lo que se te pide, dadas las dos matrices siguientes.
Ivan
I think its b because it makes sense
6 0
4 years ago
Explain how you can solve 40 × 16 by breaking apart the numbers.
Aleksandr-060686 [28]
Do 40x10=400. Then do 40x6=240. Lastly, add 400+240=640.
3 0
4 years ago
Show that each number is a rational number by writing it as a ratio of integers
Zinaida [17]

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

0.7 = \dfrac{7}{10}

Since you only have one decimal digit.

-6 is an integer, and any integer can be written as a fraction with denominator 1:

-6=\dfrac{-6}{1}

The percentage symbol simply means "divided by 100":

15\%= \dfrac{15}{100}

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

-4.3 work like 0.7:

-4.3 = \dfrac{-43}{10}

4 0
3 years ago
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