A professor determined the relationship between the time spent studying (in hours) and performance on an exam.

2 answers:

8 0

Performance = 70.443 + 4.885 * (time)
P = 70.443 + 4.885 * 2.6
P = 70.443 + 12.701
P = 83.144

P - 16 = 83.144 - 16 = 67.144

Her score is 67.

pickupchik [31]3 years ago

7 0

Answer:

Explanation:

Step 1: Insert 2.6 hours for the variable of time and solve.70.443 + 4.885(2.6)70.443+ 12.701= 83.144This is Ann's EXPECTED exam score. Because of the concert, Ann scored 16 points lower than this number.Step 2: Subtract 16 from Ann's expected score.83.144 - 16= 67.144

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