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bulgar [2K]
4 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]4 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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What is the Range of a degree 2 polynomial with a vertex at (-92801, 7) and a leading coefficient that is negative?
Gennadij [26K]

Answer:

The range is [7, -infinity)

Step-by-step explanation:

Since the leading coefficient is negative and it is a degree 2 polynomial, it is a parabola opened for downwards.

6 0
3 years ago
How can you tell if shapes are similar or not?
mel-nik [20]
It is similar because when you scale it larger the shape will be same just because it bigger
5 0
4 years ago
Read 2 more answers
What is 18/12 as a mixed number in simplest form
murzikaleks [220]

Answer:  1  1/2

You can write this as 1 & 1/2

The whole part is 1. The fractional part is 1/2

==========================================================

Explanation:

Let's say we had 18 cookies to hand out to 12 students.

How many cookies does each student get?

Using a calculator shows that 18/12 = 1.5 which means they get one whole cookie each

The leftovers is 18-12 = 6

Then notice how 6/12 = 1/2

So that's how the improper fraction 18/12 becomes the mixed number 1 & 1/2

So each student gets 1 full cookie, plus half a cookie.

------------------

Or we could do the problem like this

18/12 = (12+6)/12

18/12 = (12/12)+(6/12)

18/12 = 1 + (1/2)

18/12 = 1 & 1/2

7 0
3 years ago
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Adrian spends 35% of her paycheck on her bills. If her last check was for $927, how much did Adrian have left after paying her b
dlinn [17]
It would be 602.55 after all her bills are paid
5 0
3 years ago
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A 2/3=8/2. B. 4/9=8/9 c 3/4>9/10 d 2/4>2/3 which comparison is true
vladimir2022 [97]

The given comparisons are not true in all of the options provided.

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

The given comparisons are in the form of fractions.

Check each of the given options one by one based on the relation given for the comparison.

Option a) is 2/3 = 8/2. Here, you have to check that the given fractions are equal or not. If both the values are equal, then the comparison is true. If they are not equal, then the comparison is false.

By dividing 2 by 3, we get a value of 0.666

By dividing 8 by 2, we get a value of 4.

Therefore, 0.666 ≠ 4. The comparison is false.

Option b) is 4/9 = 8/9. Here, you have to check that the given fractions are equal or not.

Look into the given comparison, the fractions have same denominator of 9.

In such cases, if the denominator is same and the numerator value is different, then they are not equal.

Therefore, 4/9 ≠ 8/9. The comparison is false.

Option c) is 3/4 > 9/10. Here, you have to check whether 3/4 is greater than 9/10.

By dividing 3 by 4, we get a value of 0.75

By dividing 9 by 10, we get a value of 0.9

Therefore, 0.75 is not greater than 0.9. The comparison is false.

Option d) is 2/4 > 2/3. Here, you have to check whether 2/4 is greater than 2/3.

By dividing 2 by 4, we get a value of 0.5

By dividing 2 by 3, we get a value of 0.666

Therefore, 0.5 is not greater than 0.666. The comparison is false.

6 0
3 years ago
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