N & P of Binomial Distribution with Mean 12 & SD 2.683

  • Thread starter Thread starter jimmie 88
  • Start date Start date
  • Tags Tags
    Statistics
AI Thread Summary
To determine N (number of trials) and P (probability of success) for a binomial distribution with a mean of 12 and a standard deviation of 2.683, the relationships between these parameters must be utilized. The mean is calculated as N * P, while the standard deviation is given by the formula sqrt(N * P * (1 - P)). By substituting the known values into these equations, one can derive the values for N and P. The discussion emphasizes the importance of demonstrating effort in problem-solving before seeking help. Understanding the definitions and relationships in binomial distributions is crucial for accurately solving such problems.
jimmie 88
Messages
4
Reaction score
0
A binomial distribution has a mean of 12 and a standard deviation of 2.683, what are N and P?

Thanks
 
Physics news on Phys.org
First, let's see the $...

Is this homework?

Show some effort then ask the question again. At least write out the definition of a binomial dist. and suggest how the problem can be approached (you started out that way but need further advice) or cannot be approached (because you tried and didn't work).
 
I picked up this problem from the Schaum's series book titled "College Mathematics" by Ayres/Schmidt. It is a solved problem in the book. But what surprised me was that the solution to this problem was given in one line without any explanation. I could, therefore, not understand how the given one-line solution was reached. The one-line solution in the book says: The equation is ##x \cos{\omega} +y \sin{\omega} - 5 = 0##, ##\omega## being the parameter. From my side, the only thing I could...
Back
Top