Linked Questions

5 votes
0 answers
253 views

How to calculate log-normal distribution parameters with partial data? [duplicate]

Imagine we have a partial data and we know that this partial data represent only the left 5% of the log-normal distribution, which the overall data follow. How can we calculate the mean-log and sd-log ...
Pavel Kucherbaev's user avatar
4 votes
1 answer
2k views

Joint pdf of functions of order statistics

Let $ Y_1 < Y_2 <\ldots <Y_{10}$ be the order statistics of a random sample from a continuous type distribution with cdf $F(x)$. How would I begin to show that the joint distribution of $V_1=...
JohnK's user avatar
  • 19.8k
2 votes
2 answers
1k views

Estimating the distribution from percentile score, top 50 and curve

I'm trying to estimate how many people participated in a game competition and what my percentile score is based on some public data provided by the host. The data I have is: Top 50 leaderboard (Let'...
xxbidiao's user avatar
  • 207
1 vote
1 answer
2k views

Maximum Likelihood Estimator for Censored Data

Let $X^n=(X_1,X_2,...,X_n)$ denote a sample where (1) $X_i=\mathbf 1_{(\epsilon_i + \mu \geq 0)}(\mu+\epsilon_i)+\mathbf 1_{(\epsilon_i + \mu \leq 1)}(\mu+\epsilon_i)+\mathbf 1_{(\epsilon_i + \mu &...
user_newbie10's user avatar
4 votes
1 answer
1k views

Is it possible to find the 99th percentile using other percentiles?

I have the 10th, 20th, 25th, 30th, 40th, 50th (I assume this is the same as the mean), 60th, 70th, 75th, 80th and 90th percentile values of a data set. This is for the distribution of salaries in the ...
Tadiwa Mahlunge's user avatar
4 votes
1 answer
1k views

Fit a parametrized distribution on a set of quantiles

first of all, I'm not a statistician nor a data scientist, but a software developer. Thus, although I do have some (old) knowledge in statistics and probabilities, my vocabulary may not be very ...
Dima Gabachov's user avatar
1 vote
0 answers
1k views

If I have 25th, 50th and 75th percentile, can I estimate 99th percentile?

Supposing I have only: 25th percentile: 0.56 50th percentile: 0.70 75th percentile: 1.10 I don’t know other data (sample size, mean etc. ). Only those three value. And assuming data is normal ...
user1028100's user avatar
1 vote
1 answer
128 views

Making sense of this section on likelihood of order statistics

I am currently studying the textbook In All Likelihood by Yudi Pawitan. In chapter 2 Elements of likelihood inference, the author presents the following example: Example 2.4: Suppose $x$ is a sample ...
The Pointer's user avatar
  • 1,546
1 vote
0 answers
44 views

mean and MSE of Interval censored data

I have been handed data that is interval censored where left censoring is limit of detection and right censoring is saturation of the assay. How do I estimate the means and mean standard errors of ...
Bryan's user avatar
  • 1,170
0 votes
0 answers
25 views

How to calculate the likelihood for a normal distribution N(theta, 1) if we only know the maximum of a sample?

Assuming iid samples x ~ N(theta, 1), we have a sample of 5 observations with maximum value = 3. How to calculate the likelihood?
Katrina's user avatar