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3 years ago

Maria drove 520 miles in 8 hours. How many miles per hour did she drive?

Mathematics

1 answer:

Artyom0805 [142]3 years ago

8 0

Answer:

65 mph

Step-by-step explanation:

520/8 is 65

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Let X1, . . . ,Xn ∈ R be independent random variables with a common CDF F0. Let Fn be their ECDF and let F be any CDF. If F = Fn

Georgia [21]

Answer:

See the proof below.

Step-by-step explanation:

For this case we need to proof that: Let $X_1, X_2, ...X_n \in R$ be independent random variables with a common CDF $F_0$ . Let $F_n$ be their ECDF and let F any CDF. If $F \neq F_n$ then $L(F)$

Proof

Let $z_a$ different values in the set { $X_1,X_2,...,X_n}$ } and we can assume that $n_j \geq 1$ represent the number of $X_i$ that are equal to $z_j$ .

We can define $p_j = F(z_j) +F(z_j-)$ and assuming the probability $\hat p_j = \frac{n_j}{n}$ .

For the case when $p_j =0$ for any $j=1,....,m$ then we have that the $L(F) =0< L(F_n)$

And for the case when all $p_j >0$ and for at least one $p_j \neq \hat p_j$ we know that $log(x) \leq x-1$ for all the possible values $x>0$ . So then we can define the following ratio like this:

$log (\frac{L(F)}{L(F_n)}) = \sum_{j=1}^m n_j log (\frac{p_j}{\hat p_j})$

$log (\frac{L(F)}{L(F_n)}) = n \sum_{j=1}^m \hat p_j log(\frac{p_j}{\hat p_j})$

$log (\frac{L(F)}{L(F_n)}) < n\sum_{j=1}^m \hat p_j (\frac{p_j}{\hat p_j} -1)$

So then we have that:

$log (\frac{L(F)}{L(F_n)}) \leq 0$

And the log for a number is 0 or negative when the number is between 0 and 1, so then on this case we can ensure that $L(F) \leq L(F_n)$

And with that we complete the proof.

8 0

4 years ago

type the correct answer in the Box. Use Roman numerals instead of words. The graphs of functions f and g are shown. Function g i

marysya [2.9K]

Answer:

k = 2

Step-by-step explanation:

<u>Take some reference points on the graph of f and g:</u>

f(2) = 1, g(2) = 2
f(4) = 2, g(4) = 4
f(8) = 4, g(8) = 8

<u>According to the numbers above we can state:</u>

g(x) = 2f(x)

So the value of k is 2

4 0

2 years ago

(Will give Brainliest) Please Helpp I really need it

Rashid [163]

Answer:

Step-by-step explanation:

2x+5.2 + 3x+ 1.2 +2x+6.2= 180

7x+ 12.6=180

7x 12.6 - 12.6=180 -12.6

7x = 167.4

x = 23.914

should equal 60

3 0

3 years ago

Read 2 more answers

Mar 01, 2:2

vredina [299]

Answer:

put it this way 10% Is 9600 and 1% is 960

Step-by-step explanation:

so if it stacks monthly you can find your answer

also if you lookup compound interest calculator it will help you will future problems

5 0

3 years ago

Read 2 more answers

How do you use cos on the calculater in math

Veronika [31]

Answer:First make sure your calculator is on the right setting which would be a DEG. Then depending on the problem you would press COS, put whats needed inside the parentheses and close it.

Or if a different kind of problem you would press 2nd on the top of the calculator then Cos and continue the same way as the first one.

Step-by-step explanation:

8 0

3 years ago