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
lions [1.4K]
2 years ago
7

Given the following winning percentages of the teams in a league (for a single year) compute the within-season standard deviatio

n for the league. Team Season Winning Percentage 1 0.750 2 0.750 3 0.200 4 0.600 5 0.200 (a) 0.79 (b) 0.251 (x) 0.56 (d) 0.063
Mathematics
1 answer:
Masja [62]2 years ago
7 0

Answer:

(b) 0.251

Step-by-step explanation:

1. Standard deviation equation:

SD=\sqrt{\frac{\sum\limits^N_i {(x_{i}-X)^{2}  } }{N} }

Where X is the mean of the data, and N the amount of data. Then, N=5

2. Estimate the Mean:

X=\frac{0.750+0.750+0.200+0.600+0.200}{5}=\frac{2.5}{5}=0.5\\

3. Caclulate Standard deviation:

SD=\sqrt{\frac{{(0.750-0.500)^{2}+(0.750-0.500)^{2}+(0.200-0.500)^{2}+(0.600-0.500)^{2}+(0.200-0.500)^{2}  } }{5} }

SD=\sqrt{\frac{0.315}{5} }=\sqrt{0.063}\\SD=0.251

You might be interested in
For which function is f(x) equal to f-1(x)?
Andrews [41]
C...to show this, interchange letters: x = (y+1)/(y-1)xy-x = y + 1xy - y) = x + 1y(x-1) = x+1y = (x+1)/(x-1) ⇐ this is f-1(x) and it's identical to f(x).  Note: <span>the equal sign is missing in the definitions of the functions c. & d.</span>
8 0
3 years ago
F(x) = 2x2<br> Find f(-6)
Sunny_sXe [5.5K]
Is it 2 times x squared (2x^2?

2 * 6^2
2 * 36
72
3 0
3 years ago
When a number is decreased by 25%, the result is 22. What is the original number to the nearest tenth?
Ilya [14]

The decrease is 25% so this means that 22 is 75% of the original number (100% - 25% = 75%)

Divide 22 by 75%:

22/ 0.75 = 29.3

The answer is 29.3

7 0
3 years ago
Identify the population and sample.
iris [78.8K]
Population is 200 and sample is 30

Thank you hope this helps
3 0
3 years ago
Please help me.. I do not know this. I will give 100 points if you answer.
babunello [35]

Answer:

1) I believe 6 (im wrong I know it)

Step-by-step explanation:

you do whatever like 13902-1 , im so smart

4 0
2 years ago
Other questions:
  • Which is greater 6.030 or 6.03
    7·1 answer
  • Are the polygons similar? If they are, write a similarity statement and give the scale factor.
    6·1 answer
  • PLEASE HELP ASAP !! UPVOTING What is the direct linear variation equation for the relationship?
    12·1 answer
  • What number 0.2% of 50?
    6·1 answer
  • Please help me!! You don’t need a number for it just an expression
    8·1 answer
  • What is the slope of the line that passes through the points (2 3) and (–2 6)?
    9·2 answers
  • I need help with my math homework. It would mean a lot to me if someone coupd explain it. Ill type the directions. It says: Usin
    5·1 answer
  • Please help due in 5 minutes I know its a long question but I will give brainliest.
    15·2 answers
  • Are there any integers between zero and one
    13·2 answers
  • Simplify 2x^2-7x-4/x^2
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!