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Art [367]
3 years ago
9

20 points and brainliest for correct answer!

Mathematics
2 answers:
Alex Ar [27]3 years ago
8 0
Answer is <span>a.
positive correlation

</span>Positive Correlation: as one variable increases<span> so </span>does<span> the other.</span>
PilotLPTM [1.2K]3 years ago
3 0
When both variables are increasing it would a positive correlation because of it increasing would make a positive correlation and if it is decreasing it is negative correlation so your answer is A positive correlation 
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if there is a 10% chance of sun tomorrow and 20% chance of wind and no sun what is the probability that it is windy given that i
harkovskaia [24]

Answer:

=22%

Step-by-step explanation:

Since we have given two conditions simultaneously that is windy and not sunny. So we will use the concept of conditional probability.

The probability of sunny day= P(sunny)=10%

P(sunny)=10%=0.1

The probability of windy and not sunny=P(windy|not sun)=20%

P(windy|not sun)=20% = 0.2

Now divide the both probabilities:

P(windy|not sun)/P(sunny)

=0.2/[1-0.1]              

{Hence there are 10% chances of sun tomorrow than there are (1 - 0.1) chances of no sun}

If we subtract 1 from 0.1 than it becomes:

=0.2/0.9

=2/9

=0.2222222222

=22%

Hence the probability that it is windy = 22% ....

6 0
3 years ago
I’m giving all the points I have, plz help and get it right? Someone please help me
Feliz [49]

Answer:

The area (probability) is: 0.6864.

Step-by-step explanation:

According to the statement, we are in front of a normal distribution with the following parameters:

µ (mean) = 0

σ (Standard deviation) = 1.

Then we need to find the area of the shaded region, which is the area between the points -1.21 < z < 0.84.

And the area (probability) is: 0.6864.

3 0
3 years ago
Read 2 more answers
Solve:<br> 1 - 2k += = -3k
MariettaO [177]

Answer:

-1

Step-by-step explanation:

1-2k=-3k

1-2k+2k=-3k+2k

     1=-1k

1/-1=-1k/-1

-1=k

3 0
3 years ago
Read 2 more answers
Please please please can someone help me :)
disa [49]

Answer:

Step-by-step explanation:

now the equation looks like

3-4Cos(x)=y

hmmm i'm wondering if you can figure it out from here???  it's the same as the other two.. plug in that \sqrt{2} /2  .. can you?   :)

8 0
3 years ago
List the ways Congress deals with foreign policy.
In-s [12.5K]
Approving declarations of war
Approving embargos
Approving alliances 
but most of this is done by the senate not House of Reps
5 0
3 years ago
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