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bulgar [2K]
3 years ago
15

Ted is not particularly creative. He uses the pickup line​ "If I could rearrange the​ alphabet, I'd put U and I​ together." The

random variable x is the number of women Ted approaches before encountering one who reacts positively. Determine whether a probability distribution is given. If a probability distribution is​ given, find its mean and standard deviation. If a probability distribution is not​ given, identify the requirements that are not satisfied.
x
​P(x)

0
0.001
1
0.007
2
0.033
3
0.059
Does the table show a probability​ distribution? Select all that apply.
Mathematics
1 answer:
Gnesinka [82]3 years ago
4 0

Answer:

It is not  a probability  distribution as some data is missing.

Step-by-step explanation:

It is not  a probability  distribution as some data is missing.

Since it  is discrete and,

\sum_{x = 0}^{3}P(X = x)

= (0.001 + 0.007 + 0.033 + 0.059)

= 0.1 ≠ 1

and we know that for

f_{X}(x) = P(X = x)

to be classified as a discrete probability function,

1. 0 ≤ P(X = x) ≤ 1  and   ∀ x ∈ R and

2. \sum_{x \epsilon M}P(X = x) = 1

where M is  the support of X or the set of points where P(X = x) > 0

must hold.

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Maksim231197 [3]

Answer:

I think it is D

Step-by-step explanation:

Its saying that f of x is four times x. So if x was one it could be four. But if x was greater than one it would be higher than one. Therefore, I think that the answer should be all real numbers greater than or equal to four.

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4 0
2 years ago
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Hong made 2 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for both necklaces wa
egoroff_w [7]
B+ p= 10.40
b=2x 2.50
Now using substitution method replace b in first equation with value of second equation basically combing the two equations into one do you end up with one variable to solve .
2 x 2.50 +p =10.40
5 + p=10.40
P=$5.40
b =$5.00
The answer is EACH pendant cost $2.70
(You have to divide 5.40 by two )
6 0
2 years ago
Can You Please Explain How To Do Problem #10? Thank you! :)​
alexandr1967 [171]

Answer:

separate and square both the top and bottom

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6 0
3 years ago
1/2 - [-1/4+2/3] how do you solve this value of the expression
Shkiper50 [21]

Answer:

1/12

Step-by-step explanation:

1/2-[-1/4+2/3]

1/2-[-3/12+8/12]

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1/2-5/12

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3 0
3 years ago
25/50 as a percentage
kakasveta [241]
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2 years ago
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