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The table shows the ages and heights of students
Mochten
Are years
10
15
11
16
11
15
13
Cas Note
70
Metght inches) 61
63
65
70
66
67
| Quirzes
L
a) Make a scatterplat on the grid to show the data (A CEDA2) Then draw a line of best fit for the data and write the equation for the line drawn. Upload a picture of
your hnal graph (S.10.0.6.) if you cannot upload a picture of your graph, bring a copy to Ms. Hunsaker next class
Age Vs Height
20
nd
74
bes
70
The line of best it is modeled by the equation: :
story
66
10
16
11
12 14
Age years
Determine whether the association is positive or negative and describe what happens to the students helght as they get older. SID..)
c) .
Interpret the slope and intercept of your line in terms of the students' height (S.ID.C.7)
d) Use the equation of the line from part to predict the height of a student who is 17 years old SD363)
S


The Table Shows The Ages And Heights Of Students Mochten Are Years 10 15 11 16 11 15 13 Cas Note 70 Metght Inches 61 63 65 70 66 67 Quirzes L A Make A Scatterpl class=

Sagot :

Answer:

Correlation coefficient = 0.945 ( approx) and weight of a student increases as the height of the student increases.

Step-by-step equation:

Here, value of x are   58, 59, 60, 62, 63, 64, 66, 68, 70

Value of y are,     122, 128, 126, 133, 145, 136, 144, 150, 151.

∑x = 570, ∑y= 1236, ∑ = 36234, ∑ = 170694

∑xy=78617

Thus the correlation coefficient,

Where n is the number of the term.

here n = 9

thus, correlation coefficient

r =

Thus, r= 0.94452987512

Which is closed to 0.95 and greater than 1

Therefore, weight of a student increases as the height of the student increases.

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