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bulldog160
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bulldog160
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11-15-2017
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12-07-2017
07:07 PM
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12-07-2017,
07:07 PM
bulldog160
replied to a thread
Simple Bernoulli trial: prob of pipe failure during inspection
in
Probability / Statistics
Many thanks for yout help:-)
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12 replies | 599 view(s)
12-05-2017,
11:45 AM
bulldog160
replied to a thread
Simple Bernoulli trial: prob of pipe failure during inspection
in
Probability / Statistics
We haven't covered Poisson, Beta or Weibull in our syllabus yet; but I don't know whether the method you're using is the correct one as it is...
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12 replies | 599 view(s)
12-05-2017,
08:56 AM
bulldog160
replied to a thread
Simple Bernoulli trial: prob of pipe failure during inspection
in
Probability / Statistics
But the answer for p in the question is 3/46 or 0.065, whereas I got 9/523.
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12 replies | 599 view(s)
12-05-2017,
07:07 AM
bulldog160
replied to a thread
Simple Bernoulli trial: prob of pipe failure during inspection
in
Probability / Statistics
If the mean is 9/23, and n=23, then p = 9/23 / 23 = 9/529
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12 replies | 599 view(s)
12-03-2017,
06:13 PM
bulldog160
replied to a thread
Simple Bernoulli trial: prob of pipe failure during inspection
in
Probability / Statistics
I genuinely don't know what to do after this.
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12 replies | 599 view(s)
12-03-2017,
09:53 AM
bulldog160
replied to a thread
Simple Bernoulli trial: prob of pipe failure during inspection
in
Probability / Statistics
The mean of a binomial distribution is np, but I don't know how to calculate the p in this particular question.
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12 replies | 599 view(s)
11-28-2017,
07:29 PM
bulldog160
started a thread
Simple Bernoulli trial: prob of pipe failure during inspection
in
Probability / Statistics
I'm really getting baffled with this question that has taken me far too long to complete and would love some guidance. An accident caused the...
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12 replies | 599 view(s)
11-16-2017,
01:07 PM
bulldog160
replied to a thread
Getting 0 for a particular solution: r^2*dy/dr = K, r>0, K constant
in
Differential Equations
You're right. I am confusing "r" with "R". Shouldn't the answer be y(r) = K(-1/r + 1/R) ? <== Good catch! Typos have been repaired, above..
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5 replies | 299 view(s)
11-16-2017,
12:45 PM
bulldog160
replied to a thread
Getting 0 for a particular solution: r^2*dy/dr = K, r>0, K constant
in
Differential Equations
OK. -1/R + F = 0 You are left with R = 1/F. Yet, if we subsitute this back into the general solution, we get K*0, as the two F's cancel each...
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5 replies | 299 view(s)
11-16-2017,
06:56 AM
bulldog160
replied to a thread
Getting 0 for a particular solution: r^2*dy/dr = K, r>0, K constant
in
Differential Equations
This is the process I went through: integrate both sides: 1/r^2 * dr = 1/K*dy = -1/r + C = Y/K + D = -1/r = Y/K + (D-C) = -1/r = Y/K + F ...
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5 replies | 299 view(s)
11-15-2017,
06:37 PM
bulldog160
started a thread
Getting 0 for a particular solution: r^2*dy/dr = K, r>0, K constant
in
Differential Equations
I have this question that I am struggling to see if it is correct or not. A quantity y(r) satisfies the first-order fifferential equation...
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5 replies | 299 view(s)
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