Mathematics, 05.03.2020 17:33 itsmichaelhere1

In Olympic speed-skating, two Americans called Bob and Joe are competing. Their results are normally distributed, with means of 120 and 121 seconds and standard deviations of 3 and 5 seconds, respectively. The fastest non-American skater (i. e., among everyone except Bob and Joe) records a time of 118 seconds (the fastest time wins, of course).
(a) Sketch the distribution of Bob's results, and show graphically (with numbers added) how likely he is to finish at least second?
(b) How likely is it that an American wins the gold medal?
(c) How likely is it that Americans win both the gold and the silver?

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 14:50, westlakebuddy1229

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

Answers: 2

continue

Mathematics, 21.06.2019 16:00, Rainey1664

In the 30-60-90 triangle below side s has a length of and side r has a length

Answers: 2

continue

Mathematics, 21.06.2019 18:30, mauralawson

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Answers: 1

continue

Mathematics, 21.06.2019 20:20, DragonLovely

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Answers: 1

continue

You know the right answer?

In Olympic speed-skating, two Americans called Bob and Joe are competing. Their results are normally...