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Savatey [412]
3 years ago
11

A teacher is assessing the correlation between the number of hours spent studying and the average score on a science test. The t

able shows the data:
Number of hours spent studying
()
0
0.5 1 1.5 2 2.5 3 3.5 4
Seore on science test
V)
57 62 67 72 77 82 87 99 97
Part A: Is there any correlation between the number of hours students spent studying and the score on the science test? Justify your answer
Mathematics
1 answer:
Maru [420]3 years ago
7 0

yes there is a a correlation

f(x) = 4x + 60

slope = 4

y-intercept = 60

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Explanation:

It is given that the focus of the parabola is (-5,-5) and the directrix is y=7.

The standard form of the parabola is,

(x-h)^2=4p(y-k)

Where y=k-p is directrix and (h,k+p) is the focus.

Since focus is given,

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On comparing,

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p=-6

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(x+5)^2=-24(y-1)

Therefore, the equation of parabola is (x+5)^2=-24(y-1).

8 0
3 years ago
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3 years ago
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