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Ne4ueva [31]
2 years ago
15

Suppose N has a geometric distribution with parameter p. Derive a closed-form expression for E(N | N <= k), k = 1,2,... Check

via simulation for p = 0.2, k = 3.
Mathematics
1 answer:
vfiekz [6]2 years ago
3 0

Answer:

P(X= k) = (1-p)^k-1.p

Step-by-step explanation:

Given that the number of trials is

N < = k, the geometric distribution gives the probability that there are k-1 trials that result in failure(F) before the success(S) at the kth trials.

Given p = success,

1 - p = failure

Hence the distribution is described as: Pr ( FFFF.....FS)

Pr(X= k) = (1-p)(1-p)(1-p)....(1-p)p

Pr((X=k) = (1 - p)^ (k-1) .p

Since N<=k

Pr (X =k) = p(1-p)^k-1, k= 1,2,...k

0, elsewhere

If the probability is defined for Y, the number of failure before a success

Pr (Y= k) = p(1-p)^y......k= 0,1,2,3

0, elsewhere.

Given p= 0.2, k= 3,

P(X= 3) =( 0.2) × (1 - 0.2)²

P(X=3) = 0.128

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Math help please help thanks
ser-zykov [4K]

Answer:

62

Step-by-step explanation:

Draw a line from the bottom of the 4 foot line straight across (horizontally) until it hits the vertical line on your left.

The two lines (the one you drew and the left vertical line) meet at right angles.

The upper figure is a rectangle.

Area = L * W

L = 5

W = 4

Area = 5 * 4

Area = 20

Now the bottom rectangle can be found the same way.

Area = L * W

L = 14

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Area = 42

The total area = 42 + 20

Total area = 62.

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5 0
3 years ago
What is a solid figure without any bases and with only one curved surface
Marizza181 [45]
Circle is the answer.
6 0
2 years ago
What is the discriminant of 3x2 + 6x = 2?
Softa [21]

Answer:

Discriminant is 60

Step-by-step explanation:

the discriminant of 3x^2 + 6x = 2

To find discriminant , first we write the equation in the form of

ax^2+bx+c=0

3x^2 + 6x = 2

Subtract 2 on both sides

3x^2 + 6x-2=0

a=3, b=6, c=-2

Formula for discriminant is b^2-4ac

Plug in the values

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5 0
3 years ago
What is the simplified sum of 3x/x-4 + x-3/2x
zubka84 [21]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>-1 - 1/2x</em>

▹ Step-by-Step Explanation

3x ÷ x - 4 + x - 3 ÷ 2x

Divide and Rewrite:

3 * 1 - 4 + x - 3 ÷ 2 * x

Calculate:

3 - 4 + x - 3/2x

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= -1 - 1/2x

Hope this helps!

CloutAnswers ❁

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4 0
3 years ago
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TEA [102]

Answer:

C

Step-by-step explanation:

The domain is all real numbers, and the range is all integers that are multiples of 3. This is right I took the test.

7 0
3 years ago
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