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Solnce55 [7]
2 years ago
13

2) The following table presents the probability distribution of the number of vacations X taken last year for a randomly chosen

family. Compute the mean u.
x. 0. 1. 2. 3. 4
p(x) 0.13. 0.61. 0.15. 0.07. 0.04 ​
Mathematics
1 answer:
algol [13]2 years ago
3 0

The mean of the discrete probability distribution is of 1.28.

<h3>What is the mean of a discrete distribution?</h3>

The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability</u>.

Then, considering the given distribution, the mean is given by:

E(X) = 0(0.13) + 1(0.61) + 2(0.15) + 3(0.07) + 4(0.04) = 1.28.

More can be learned about the mean of a discrete probability distribution at brainly.com/question/24855677

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-4 + 6g, for g = 4 i need in a sentence
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Answer:

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Step-by-step explanation:

If g is equal to 4 the answer is 20

8 0
3 years ago
Please help me! I’ll name you brainiest!!!
Kamila [148]

Answer:

80

Step-by-step explanation:

first, put in (5x-4) for the x in g(x).

g(f(x))=(5x-4)^2 -1

now, FOIL and simplify.

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now, plug in -1 for x.

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3 years ago
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Nathan wants to use coordinate geometry to prove that the opposite sides of a rectangle are congruent. He places parallelogram A
valentina_108 [34]
<h3><u>Answer:</u></h3>

The formula determine the distance from C to D is:

\sqrt{(0-a)^2+(-b)^2}=\sqrt{a^2}=a

<h3><u>Step-by-step explanation:</u></h3>

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\sqrt{(0-a)^2+(-b)^2}=\sqrt{a^2}=a

We know that distance between two points A(a,b) and B(c,d) is equal to the length of the line segment AB and is calculated by the help of the formula:

\sqrt{(c-a)^2+(b-d)^2}

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3 0
3 years ago
What is the measure of angle BAC ?
Eva8 [605]
An inscribed angle (BAC) is one half the angle of a central angle (BOC) that intercepts the same arc.  Therefore, BAC = 34 degrees.


3 0
3 years ago
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Hope someone help.me​
zvonat [6]

x = r sin θ cos Ф

x² = r² sin² θ cos² Ф

y = r sin θ sin Ф

y² = r² sin² θ sin² Ф

z = r cos θ

z² = r² cos²  θ

x² + y² + z²

= r² sin² θ cos² Ф  +  r² sin² θ sin² Ф +  r² cos²  θ

= r² sin² θ (cos² Ф + sin² Ф) +  r² cos²  θ

= r² sin² θ + r² cos²  θ

= r² (sin² θ + cos²  θ)

= r²       √

7 0
3 years ago
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