All categories

4 years ago

"x is an exponential random variable with mean equal to 100. what is the probability that x equals 90?"

Mathematics

1 answer:

Svetradugi [14.3K]4 years ago

4 0

Since mean is 100 so Λ=1/100,

But since exponential distribution is continuous distribution so probability at a particular points

Is zero. That probability

That X is equal to 90 degree is 0.

You might be interested in

And i need help with these problem.

Nikolay [14]

Let the required amount of the second alloy be x, then
0.15 x 20 + 0.1x = 0.12(20 + x)
3 + 0.1x = 2.4 + 0.12x
0.12x - 0.1x = 3 - 2.4
0.02x = 0.6
x = 0.6/0.02 = 30

Therefore, to make a 12% mixture, 30 pounds of the secon mixture should be added.

8 0

3 years ago

Read 2 more answers

25a-3b+7a+25b-18a-16b+20b

GrogVix [38]

The answer to ur question is 19a+b

8 0

3 years ago

Which of the following illustrates the truth value of the given statements? P: 7 is an even number or Q: 3 is the square root of

miskamm [114]

Answer:

FT->T

Step-by-step explanation:

When we write your question in different way it is easy.

T F-> T

T T->T

FF->F

FT->T

Now, we have :

P: 7 is even number-false because 7 is not even number.

Q: 3 is the square root of 9-true

P v Q=F T=T

5 0

3 years ago

What is the slope of the line that passes through the points (6,0) and (21,-20)

Paha777 [63]

Answer:

$\Longrightarrow: \boxed{\sf{-\dfrac{4}{3} }}$

Step-by-step explanation:

To find:

The slope of the line that passes through the points.

Note:

Use the slope formula.

$\underline{\text{SLOPE FORMULA:}}$

$\Longrightarrow: \sf{\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{RISE}{RUN} }$

y₂=(-20)
y₁=0
x₂=21
x₁=6

$\Longrightarrow: \sf{\dfrac{(-20)-0}{21-6}}$

Solve.

$\sf{\dfrac{-20-0}{21-6}=\dfrac{-20}{15}=\dfrac{-20\div5}{15\div5}=\dfrac{-4}{3}=\boxed{\sf{-\dfrac{4}{3}}}$

Therefore, the slope is -4/3, which is our answer.

I hope this helps. Let me know if you have any questions.

4 0

2 years ago

Read 2 more answers

Convert this into slope intercept from & provide its slope 5x-2y=4

Elden [556K]

Slope Intercept Form: y=mx+b
m= slope
b= y-intercept

5x - 2y= 4
subtract 5x from both sides

-2y= -5x + 4
divide both sides by -2

y= (-5x + 4)/-2
negative divided by negative equals a positive; positive divided by negative equals a negative

y= 5/2x - 4/2
simplify where possible
y= 5/2x - 2

ANSWER:
Slope Intercept Form: y= 5/2x - 2
Slope: 5/2

Hope this helps! :)

7 0

3 years ago