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18 December, 14:17

Suppose the linear regression line y=-0.3x + 11.2 predicts the time, in

minutes, it takes you to finish an obstacle course after training for x days.

About how much time would it take you to finish the course after training for

7 days?

O

A. 78.1 minutes

O

B. 2.1 minutes

O

C. 13.3 minutes

O

D. 9.1 minutes

+1
Answers (2)
  1. 18 December, 16:09
    0
    D y = - 0.3 (7) + 11.2

    = 9.1
  2. 18 December, 16:37
    0
    D. 9.1

    Step-by-step explanation:

    You first multiply - 0.3 * (7) which will give you - 2.1. Lastly you add 11.2 to the - 2.1 that will give you the answer 9.1
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