subject
Mathematics, 28.01.2020 04:31 shawny5

In a roller-skating rink, the skaters all move at different speeds. most skate slightly faster or slower than others, but sometimes an adventuresome skater accelerates to an "outlying" speed that is much higher than that of everyone else, creating a hazard. as a result, skating rinks often post a sign that says: any skater moving faster than the average speed of all the skaterswill be asked to leave the rink. it is clear what the sign means, but it is statistically nonsensical. if there are 100 skaters in a rink, all skating at slightly varying speeds, what is the best estimate for how many of them are moving faster than the average speed of all the skaters?

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 15:00, misswonderless
What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.
Answers: 3
image
Mathematics, 21.06.2019 20:00, joelhtx
Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0
Answers: 2
image
Mathematics, 21.06.2019 21:20, Hazard970
If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°
Answers: 2
image
Mathematics, 21.06.2019 22:00, JOEREACH
Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2
Answers: 1
You know the right answer?
In a roller-skating rink, the skaters all move at different speeds. most skate slightly faster or sl...

Questions in other subjects:

Konu
Biology, 20.04.2020 18:58
Konu
Mathematics, 20.04.2020 18:59