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kykrilka [37]
2 years ago
13

Suppose you have a random variable that is uniformly distributed between 1 and 29. what is the expected value for this random va

riable?
Mathematics
1 answer:
Kryger [21]2 years ago
3 0
Assuming the distribution is continuous, you have

\mathbb E(X)=\displaystyle\int_1^{29}\frac x{29-1}\,\mathrm dx=\dfrac1{28}\int_1^{29}x\,\mathrm dx=15

If instead the distribution is discrete, the value will depend on how the interval of number between 1 and 29 are chosen - are they integers? evenly spaced rationals? etc
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B ≥ 209

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3 years ago
Which of the following is not a valid reason for a dealership to offer
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Step-by-step explanation:

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Write 3.5 • 4 using words
Elena-2011 [213]

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5 0
2 years ago
The expression f(x) = 12(1.035)* models the monthly growth of membership in the new drama club at a school. According to the fun
olga nikolaevna [1]

Answer:

The monthly growth rate is 3.5%.

Step-by-step explanation:

The exponential growth function is given as follows:

y=a(1+r)^{x}

Here,

<em>y</em> = final value

<em>a</em> = initial value

<em>r</em> = growth rate

<em>x</em> = time taken

The provided expression for the monthly growth of membership in the new drama club at a school is:

f(x) = 12\cdot(1.035)^{x}

Comparing this function with the exponential growth function:

a(1+r)^{x}=12(1.035)^{x}\\\\a(1+r)^{x}=12(1+0.035)^{x}

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7 0
3 years ago
Stephanie just redecorated her bedroom. She wants to paint but needa to know the surface area of the door to see if she has enou
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Step-by-step explanation:

Given that the surface area of a cuboid which is the 3D of rectangle is :

s.a = 2(l \times w) + 2(l \times h) + 2(w \times h)

let \: l = 80 \\ let \: w = 3 \\ let \: h = 200

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s.a = 480 + 32000 + 1200

s.a = 33680 \:  {cm}^{2}

8 0
3 years ago
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