Mathematics, 13.10.2020 08:01 seby77L

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? Abby had a better performance in the 1,000-meter because this z-score was closer to the mean than the z-score for the 800-meter.
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.
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.
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

Another question on Mathematics

Mathematics, 21.06.2019 19:30

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

Answers: 1

Answer

Mathematics, 21.06.2019 19:30

Write a function rule for the table. hours worked pay 2 $16.00 4 $32.00 6 $48.00 8 $64.00 p = 16h p = 8.00h p = h + 16 h = 8.00p

Answers: 1

Answer

Mathematics, 21.06.2019 22:00

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120

Answers: 3

Answer

Mathematics, 21.06.2019 22:00

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

Answers: 2

Answer

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...

Questions

Mathematics, 31.01.2020 13:49

Acoin is tossed 140 times. the probability of getting tails is p = 0.500. would a result of 55 heads out of the 140 trials be considered usual or unus...