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3 years ago

I free chance !!!! your welcome :)

Mathematics

2 answers:

allochka39001 [22]3 years ago

4 0

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ankoles [38]3 years ago

4 0

Thank u!! :))))))))))))))))))

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let X represent the amount of time till the next student will arriv ein the library partking lot at the university. If we know t

AlekseyPX

Answer:

0.606531 = 60.6531% probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

$f(x) = \mu e^{-\mu x}$

In which $\mu = \frac{1}{m}$ is the decay parameter.

The probability that x is lower or equal to a is given by:

$P(X \leq x) = \int\limits^a_0 {f(x)} \, dx$

Which has the following solution:

$P(X \leq x) = 1 - e^{-\mu x}$

The probability of finding a value higher than x is:

$P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}$

Mean of 4 minutes

This means that $m = 4, \mu = \frac{1}{4} = 0.25$

Find the probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot:

This is:

$P(2 \leq X \leq 132) = P(X \leq 132) - P(X \leq 2)$

In which

$P(X \leq 132) = 1 - e^{-0.25*132} = 1$

$P(X \leq 2) = 1 - e^{-0.25*2} = 0.393469$

$P(2 \leq X \leq 132) = P(X \leq 132) - P(X \leq 2) = 1 - 0.393469 = 0.606531$

0.606531 = 60.6531% probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot.

4 0

3 years ago

Write an expression for the operation described below <br> 4 increased by P

exis [7]

Wouldn’t it be 4^P

i light be wrong

8 0

3 years ago

37% of a certain country's voters think that it is too easy to vote in their country. you randomly select 12 likely voters. fi

Elenna [48]

Multiply 12 by 37%.
12 × 0.37 = 4.44

B) at least 4

It could also be c... 4.44 is less than 8. But B is the closest answer to 4.44.

4 0

3 years ago

Write a formula for function h in terms of function f.<br> h(x)=

kati45 [8]

Answer:

h(x) = f(x + 12) - 4

Step-by-step explanation:

According to the graph, the function h(x) is the translation of the function f(x) to the right and down.

Compare the coordinates of the vertices to write the formula

(- 6, 11) → (6, 7)

x = 6 - (-6) = 12
y = 7 - 11 = - 4

The formula is

h(x) = f(x + 12) - 4

7 0

2 years ago

If 2x -3(x +4)=-17, then x=

Gnom [1K]

2x -3x - 12 = -17
-x -12 = -17
-x = -5
x = 5

Hope this helps!

7 0

4 years ago

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