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strojnjashka [21]
2 years ago
14

What the answer?????????????????

Mathematics
1 answer:
Andrews [41]2 years ago
3 0

Answer:

its c

Step-by-step explanation:

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The probability distribution of random variable, X, is defined as follows:
stealth61 [152]

Answer and Step-by-step explanation:

A) For the model to be a probability distribution, it has to follow two conditions:

1) The probability of each value of the discrete random variable is between, and included, 0 and 1:

2) The sum of all probabilities is 1;

In the table shown, the probabilities are from 0 to 0.3 - between 0 and 1;

Adding the probabilities: 0 + 0.3 + 0.1 + 0.3 + 0.3 = 1

Therefore, this model is a valid probability distribution model.

B) They are discrete because each value correspond to a finite number of possible values.

C) Expected value is calculated by

E(X) = \Sigma xP(x)

E(X) = 0.0 + 1*0.3 + 2*0.1 + 3*0.3 + 4*0.3

E(X) = 2.6

D) P(X=3) = P(3), which means probability of 3:

P(X=3) = 0.3

E) P(X<4): probabilities of values of X that are less than 4:

P(X<4) = P(0) + P(1) + P(2) + P(3)

P(X<4) = 0 + 0.3 + 0.1 + 0.3

P(X<4) = 0.7

F) P(X>0) = P(1) + P(2) + P(3) + P(4)

P(X>0) = 0.3 + 0.1 + 0.3 + 0.3

P(X>0) = 1

G) P(X=5) = P(5)

There is no probability of P(5) because the model doesn't "cover" that number.

H) P(X=0) = P(0)

P(X=0) = 0

I) The total area of any density curve is 1 because it represents all the possible values a variable can assume.

3 0
3 years ago
Write a recursive rule for the sequence 4,10,16,22
Phantasy [73]

Answer:

a_{n+1} = a_{n} + 6

Step-by-step explanation:

The terms have a common difference d between consecutive terms, that is

10 - 4 = 16 - 10 = 22 - 16 = 6

To obtain the next term add 6 to the previous term ( recursive rule ), thus

a_{n+1} = a_{n} + 6 with a₁ = 4

8 0
2 years ago
Which equation represents the line that passes through the point (2, 5) and has a slope of 4?
inysia [295]

Answer:

A. y-5=4(x-2)

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
What is the value of the expression, written in standard form?<br>(6.6x10^-2)<br>(33x 10^-4)​
Thepotemich [5.8K]

Answer:

200

Step-by-step explanation:

Steps

6.6 x 10^{-2}/3.3 x 10-4

10^{-2}-4(-4) x 6.6/3.3

10^{-2} x 6.6 = 660/3.3

=200

3 0
2 years ago
Different ways to make the number 15,638 with only hundreds,tens,and ones
Svetlanka [38]
1500 ➕600 ➕30➕ 8 it is very. is easy. to me
7 0
3 years ago
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