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3 years ago

Scatter Plot Question

Mathematics

2 answers:

Fiesta28 [93]3 years ago

7 0

a) y=9/8x+20

b) 76.25

mixas84 [53]3 years ago

5 0

Answer:

(a) y = 15 + x

(b) Quiz score will be 65.

Step-by-step explanation:

Line of best fit is the straight line which represents our scatter plot in the best way. This straight line is said to be best if the sum of the distances between the points and the line is small.

Its equation is of the form: y = a + bx , where a is intercept and b is the slope.

(a). The approximate equation of the line of best fit can be: y = 15 + x

Because line meets the y-axis nearly (0, 15).

Also here y represents the quiz score and x represents the time spent in studying.

(b) If y = 15 + x be the equation of best fit then,

Time Spent in Studying(y) = 15 + 50 = 65 minutes.

Since, quiz score(x) = 50 minutes.

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