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Nina [5.8K]
3 years ago
15

Why atoms move at different speeds depending on whather they are in liquids or solids

Social Studies
2 answers:
Eddi Din [679]3 years ago
6 0
Because they will become compressed when sildi 
and liqiud they can move freely
NeX [460]3 years ago
5 0
Liquids are not as dense as solids. And atoms are more spread out in liquids and they move alot more. 
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Answer :

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Explanation:

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_____ the delay between a response and a consequence _____:
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3.6.46-T Consider the following sample data for two variables. x 7 8 5 3 9 y 7 5 9 7 7 a. Calculate the sample covariance. b. Ca
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Explanation:

1.

Co-variance= Cov(x,y)= sum[(x-xbar)(y-ybar)]/n

xbar=sumx/n=32/5=6.4

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x-xbar 0.6 1.6 -1.4 -3.4 2.6

y 7 5 9 7 7

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Cov(x,y)=-1.2

2.

correlation coefficient=r

r=\frac{sum(x-xbar)(y-ybar)}{\sqrt{sum(x-xbar)^2sum(y-ybar)^2} }

x 7 8 5 3 9

x-xbar 0.6 1.6 -1.4 -3.4 2.6

y 7 5 9 7 7

y-ybar 0 -2 2 0 0

(x-xbar)(y-ybar) 0 -3.2 -2.8 0 0

(x-xbar)² 0.36 2.56 1.96 11.56 6.76

(y-ybar)²  0 4 4 0 0

r=\frac{-6}{\sqrt{23.2(8)} }

r=-0.4404

3. Since the value of correlation coefficient is negative and less than 0.5 , so, we can say that there is weak negative relationship between x and y.

7 0
3 years ago
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