subject
Mathematics, 08.05.2021 03:20 vrw28

When John runs the 400 meter dash, his finishing times are normally distributed with a mean of 71 seconds and a standard deviation of 2.5 seconds. If John were to run 33 practice trials of the 400 meter dash, how many of those trials would be slower than 67 seconds, to the nearest whole number?

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 15:50
Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?
Answers: 1
question
Mathematics, 21.06.2019 20:30
26) -2(7x) = (-2 • 7) x a. associative property of addition b. associative property of multiplication c. commutative property of multiplication d. commutative property of addition
Answers: 1
question
Mathematics, 21.06.2019 20:50
What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex
Answers: 2
question
Mathematics, 21.06.2019 22:00
I’m confused on how to work the pie charts
Answers: 2
You know the right answer?
When John runs the 400 meter dash, his finishing times are normally distributed with a mean of 71 se...
Questions
question
Mathematics, 16.09.2019 15:30
Questions on the website: 13722363