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8090 [49]
4 years ago
6

If the probability density of a random variable is given by find the probabilities that a random variable having this probabilit

y density will take on a value a) between0.2and0.8; b) between 0.6 and 1.2

Mathematics
1 answer:
kolezko [41]4 years ago
3 0

Answer

The answer and procedures of the exercise are attached in the following archives.

Step-by-step explanation:

You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.  

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The relation is not  a function because the x repeats twice.
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35% of 15% of x is equivalent to which of the following
Irina-Kira [14]

Answer:

need more info to help???????

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3 years ago
Factor completely 50 a^2 b^5 - 35 a^4 b^3 + 5 a^3 b^4
maw [93]

Answer:

5a^2b^3(-7a^2+ab+10b^2)

Step-by-step explanation:

Factor 50 a^2 b^5 - 35 a^4 b^3 + 5 a^3 b^4

−35a^4b^3+5a^3b^4+50a^2b^5

=5a^2b^3(-7a^2+ab+10b^2)

3 0
3 years ago
The temperature at a point (x,y,z) is given by t(x,y,z)=200e−x2−y2/4−z2/9t(x,y,z)=200e−x2−y2/4−z2/9, where tt is measured in deg
yulyashka [42]
First find the gradient by using partial derivatives.

T_x = (-2x)200 e^{(-x^2 -y^2/4 -z^2/9)} \\  \\ T_y = (-\frac{1}{2}y)200 e^{(-x^2 -y^2/4 -z^2/9)} \\  \\ T_z = (-\frac{2}{9}z)200 e^{(-x^2 -y^2/4 -z^2/9)}

Sub in given point (0,-1,2) for x,y,z
∨T = (T_x, T_y,T_z) = (0,100e^{-25/36, \frac{-800}{9} e^{-25/36})

Next, find unit vector from directional vector (0,-1,2) --> (-3,4,-3)
v = (-3-0, 4-(-1), -3-2) = (-3,5,-5) \\  \\ ||v|| = \sqrt{(-3)^2 + 5^2 + (-5)^2} = \sqrt{59} \\  \\ u = (\frac{-3}{\sqrt{59}}, \frac{5}{\sqrt{59}},\frac{-5}{\sqrt{59}})

Finally, use dot product on gradient and unit vector to get directional rate of change.
Answer is approx 61.398 
8 0
3 years ago
In 2009, Jennifer made $11.50 an hour, and in 2010, she made $12.75 an hour. What is the percent of change in Jennifer’s pay per
PolarNik [594]

Answer:

  • 10.87%

Step-by-step explanation:

<u>Change in pay:</u>

  • 12.75 - 11.50 = 1.25

<u>Percent of change:</u>

  • 1.25/11.50*100% = 10.87% (rounded)
3 0
3 years ago
Read 2 more answers
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