can someone please help me out this ><

- Math2400

can someone please help me out this ><

- schrodinger

I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!

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- Math2400

##### 1 Attachment

- amistre64

Coef means: coefficient.
the coef for the constant term (the y intercept) is given
the coef for the variable term (the slope) is given

- amistre64

hmm, it appears that they already GIVE you the regression equation where it says: "The regression equation is"

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## More answers

- Math2400

@ganeshie8 if u get a second lmk if u could help me out with this one ><

- Math2400

would it be: 0.92 + 2.06x ?

- Vocaloid

almost, it says to round to 3 decimal places

- Vocaloid

you picked the right numbers, you just need to round differently

- Math2400

so like 0.920 + 2.060x ?

- Vocaloid

look at the table again

- Vocaloid

the constant is 0.919
and the coefficient is 2.0647, which rounds to 2.065

- Math2400

ok and then for the next question do i just plug in 25 C to get 52.42 or do I use the graph?

- Math2400

*table

- Vocaloid

use the function, let x = 25

- Math2400

so 52.544 ?

- Math2400

thank you so much @Vocaloid you're the only one who has been able to help me on this one lol.
it goes on to ask: the percent of the variation in beak heat loss is explained by the straight-line relationship with temperature is ______. Round your answer to one decimal place.
so it would it be 83.6% ?

- Vocaloid

yup!

- Math2400

awesome and then the last one says: Using the information in Figure 4.9, the correlation r between beak heat loss and temperature is ______. Round your answer to 3 decimal places.
Is it 4.507??

- Vocaloid

nope
they give you r^2, just take the square root of that to find r

- Math2400

wait which is r^2?

- Math2400

- Vocaloid

R-Sq

- Math2400

so change it to 0.824 and square root to get 0.908 ?

- Vocaloid

yes

- Math2400

Thank you so much :)

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