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8090 [49]
3 years ago
6

NEED HELP ASAP! WILL CRY OR SOMETHING

Mathematics
1 answer:
Andrew [12]3 years ago
4 0

Part A: Group A is a cluster of points. Group B Is not even a group this point is an outlier. A possible reason Point B is involved is because there could be a student that although played a lot of video games, he studied too and got a good score.  

Part B: The association is a negative linear association. Also as students play more video games the test scores tend to go down.

Hope This Helps!

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The scatter plot below displays the elevation and mean number of clear days per year of 14 U.S. cities. Two lines
Novay_Z [31]

Answer:

=

Step-by-step explanation:

Students use the least squares regression line to make predictions. ... Example 1 (2 minutes): Using a Line to Describe a Relationship ... the model given in the student lesson to predict a man's height using a shoe length of ... Below is a scatter plot of the data with two linear models, ... in Exercise 3 that represents this man

4 0
3 years ago
What is the probability that a red or green marble will be selected from a bag containing 9 red marbles, 6 blue marbles, 7 green
lara31 [8.8K]

Answer: \bold{\dfrac{16}{33} = 48\%}

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

  Red  or  Green

=\dfrac{red}{total}+\dfrac{green}{total}

=\dfrac{9}{33}+\dfrac{7}{33}

=\dfrac{16}{33}

≈ 48%






4 0
3 years ago
HELP A KID IN NEED
Stella [2.4K]

Answer:

8z+5

Step-by-step explanation:

Let's split the expression into two terms- z and... not z :)

3z+5z=8z

Why? it's just 3+5 with z tacked on the end

14-9=5

simple math :)

put it together to get

8z+5

all done!

lmk if you have any more questions

8 0
2 years ago
Use the distributive property to express 15+45
Nuetrik [128]
<u><em>Answer:</em></u>
15(1+3)

<u><em>Explanation:</em></u>
<u>The distributive property can be generally expressed as follows:</u>
ab + ac = a(b+c)

<u>The given expression is:</u>
15 + 45

<u>We know that:</u>
15 = 1*15
45 = 3*15

<u>Therefore, the given expression can be written as:</u>
1*15 + 3*15

<u>Taking 15 as a common factor and applying the above rule, we will reach the following expression:</u>
15(1+3)

Hope this helps :)
5 0
3 years ago
Factor this expression: ab + 4 + a + 4b
Makovka662 [10]

Grouping method works best on this one:

<span>ab+a+4+4b=a<span>(b+1)</span>+4<span>(b+1)</span></span>
<span>=<span>(a+4)</span><span>(b+1<span>)
</span></span></span>

4 0
3 years ago
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