1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mice21 [21]
3 years ago
11

In a roller-skating rink, the skaters all move at different speeds. Most skate slightly faster or slower than others, but someti

mes 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?
Mathematics
1 answer:
Tanzania [10]3 years ago
4 0
Did you ever get the answer? I have pretty much the same exact one but mine said 150 skaters and I don't know how to answer it.
You might be interested in
Which graph has a slope of 1/4?
Arte-miy333 [17]

Answer:Please include images of the graphs!

8 0
3 years ago
Read 2 more answers
suppose six of these people are men, and the other six are women. in how many ways can they join hands for a circle dance, assum
Drupady [299]

Twelve people join hands for a circle dance.In how many ways can they do this? Suppose six of these people are men, and the other six are women. In how many ways can they join hands for a circle dance, assuming they alternate in gender around the circle

Answer:

86400 ways

Step-by-step explanation:

Since the circle can be rotated, the number of ways to arrange a distinct number of n objects in a circle will be (n−1)!.

Now, if we rotate the circle with the six women, we will see that there are 5! ways with which they can be placed in the circle.

After picking the places for the women, we will now fill each gap between two women with a man.

We have 6 men. Thus, number of ways to arrange the men is 6!

Thus,number of ways they can join hands for a circle dance, assuming they alternate in gender around the circle = 5! × 6! = 86400 ways

8 0
3 years ago
For a population with a mean of u = 40 and a standarddeviation of o = 8, find the z-score corresponding toeach of the following
ivann1987 [24]

Solution:

Given the mean and standard deviation;

\mu=40,\sigma=8

The z-score formula is;

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

(a)

\begin{gathered} x=34,n=1 \\  \\ z=\frac{34-40}{\frac{8}{\sqrt{1}}} \\  \\ z=-0.75 \end{gathered}

(b)

\begin{gathered} x=34,n=4 \\  \\ z=\frac{34-40}{\frac{8}{\sqrt{4}}} \\  \\ z=-1.5 \end{gathered}

(c)

\begin{gathered} x=34,n=16 \\  \\ z=\frac{34-40}{\frac{8}{\sqrt{16}}} \\  \\ z=-3 \end{gathered}

5 0
1 year ago
Solve for the given variable (see pic)
4vir4ik [10]
27+a=32
a=32-27
a=5


Hope this helped you :)
7 0
3 years ago
Read 2 more answers
Which Expressions are equivalent to the following 30x2-5x-10
Sunny_sXe [5.5K]

Answer:

60-5x-10, 50-5x, 5(10 + x)

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Add the numerator and denominator seperatly, then find the quotient <br> -3( - 8) / 5 + 7
    14·1 answer
  • Determine if the two figures are congruent and explain your answer.
    7·1 answer
  • Please answer I need it fast thx ¡,,
    13·1 answer
  • What is the slope of the line passing through the point (-3,-1) and the origin?
    15·1 answer
  • Which expressions are polynomials
    15·1 answer
  • Talia took the bus from her home to the bank and then walked back to her home along the same route. The round trip took 0.9 hour
    7·1 answer
  • Dose anyone know how to do this ??
    10·1 answer
  • I WILL GIVE BRAINLIEST TO CORRECT ANSWER
    6·1 answer
  • Find the equation of the line that is perpendicluar to y=-2/3x and contains the point (4,-8)
    14·1 answer
  • I need help to this also, this is almost to the end of this assignment
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!