Mathematics, 10.02.2021 07:20 lmirandanvmi

For the 1,000-meter running event, Abby's mean time is 4.5 minutes with a standard deviation of 0.75 minutes. For the 800-meter event, Abby's mean time is 3.2 minutes with a standard deviation of 0.4 minutes. In the last track
meet, Abby ran the 1,000-meter race in 4.1 minutes and the 800-meter race in 3 minutes. In which event did Abby
have a better performance?
ause this z-score was closer to the mean than the Z-score
A Abby had a better performance in the 1,000-
for the 800-meter.
B Abby had a better performance in the 800-meter because this z-score was closer to the mean than the Z-score for
the 1,000-meter.
C Abby had a better performance in the 1,000-meter because this z-score was farther below the mean than the z-
score for the 800-meter.
D Abby had a better performance in the 800-meter because this z-score was farther below the mean than the z-
score for the 1,000-meter.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:00, nancye2008

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

Answers: 2

continue

Mathematics, 21.06.2019 17:20, tfyfejeje1739

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

Answers: 3

continue

Mathematics, 21.06.2019 23:00, dianereyes7475

The angles in a triangle are represented by 5x, 8x, and 2x+9. what is the value of ? a.10.8 b.11.4 c.9.7 d.7.2

Answers: 2

continue

Mathematics, 22.06.2019 00:50, meganwintergirl

4. a single woman uses an online cash flow calculator which reveals a cash flow of 203. what does this mean?

Answers: 3

continue

You know the right answer?

For the 1,000-meter running event, Abby's mean time is 4.5 minutes with a standard deviation of 0.75...