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zavuch27 [327]
3 years ago
5

Suppose the correlation between height and weight for adults is 0.80. What proportion (or percent) of the variability in weight

can be explained by the relationship with height
Mathematics
1 answer:
gulaghasi [49]3 years ago
8 0

Answer: 64% of the variability in weight can be explained by the relationship with height.

Step-by-step explanation:

  • In statistics, Correlation coefficient is denoted by 'r' is a measure of the strength of the relationship between two variables.
  • Coefficient of determination, r^2, is a measure of variability in one variable can be explained variation in the other.

Here, r= 0.80

\Rightarrow\ r^2= (0.80)^2=0.64

That means 64% of the variability in weight can be explained by the relationship with height.

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2(4-2x)-2<-2x+6 what does x equal?
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Step-by-step explanation:

the answer is in the picture


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3 years ago
Please help, I need to turn in soon !!!
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Answer:

44, parallel, equals half

Step-by-step explanation:

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In the figure, the perimeter of hexagon ABCDEF is approximately ___
blsea [12.9K]
Let
F(-10,0) A(10,10) B(20,10) C(30,0) D(20,-10) E(10,-10)
we know that
FA=FE \\ AB=ED \\ BC=CD

step 1
find distance FA
dFA= \sqrt{ (y2-y1)^{2} +(x2-x1)^{2} } \\ dFA= \sqrt{ (10-0)^{2} +(10+10)^{2}

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step 2
find distance AB
dAB=20-10 \\ dAB=10 units

step 3
find the distance BC
dBC= \sqrt{ (y2-y1)^{2} +(x2-x1)^{2} }
dBC= \sqrt{ (0-10)^{2} +(30-20)^{2} }
dBC= \sqrt{200}
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step 4
find the perimeter
the perimeter is equal to
P=2*[FA+AB+BC] \\ P=2*[22.36+10+14.14] \\ P=93 units

step 5
find the area
the area is equal to
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step 6
find the area of triangle AFE
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step 7
find the area of the rectangle ABDE
A2=10*20 \\ A2=200 units^{2}

step 8
find the area of the triangle BDC
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8 0
3 years ago
Read 2 more answers
Jane works 3 times as fast as Eleanor. If they work together they can do a job in 21 minutes. How long does it take Eleanor to d
e-lub [12.9K]

Answer:

1 hour and 24 min

Step-by-step explanation:

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21*4=84

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4 0
3 years ago
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I assume your "reasons" mean "roots" or "zeros"
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m+4=2
m=-2
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4 years ago
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