Quotes About Estimation

Los sucesos que son no repetibles se ignoran antes de que se produzcan, y se sobreestiman después (durante un breve tiempo).

whatever they are guessing has about a 2 percent chance to fall outside their range.

One of the most misunderstood aspects of a Gaussian is its fragility and vulnerability in the estimation of tail events. The odds of a 4 sigma move are twice that of a 4.15 sigma. The odds of a 20 sigma are a trillion times higher than those of a 21 sigma! It means that a small measurement error of the sigma will lead to a massive underestimation of the probability. We can be a trillion times wrong about some events.

So here is a simple rule of thumb (a heuristic): to estimate the quality of research, take the caliber of the highest detractor, or the caliber of the lowest detractor whom the author answers in print—whichever is lower.

Dobyns calculated that in the first 130 years of contact about 95 percent of the people in the Americas died. To estimate native numbers before Columbus, one thus had to multiply census figures from those times by a factor of twenty or more.

First of all, our best guess for what the mean of any sample will be is the mean of the population from which it's drawn.

Specifically, the sample means will form a normal distribution around the population mean, which in this case is $70,900.

The standard error measures the dispersion of the sample means.

Life gets a little trickier when we are doing our regression analysis (or other forms of statistical inference) with a small sample of data.

Instead, we have to assume that repeated samples of just 25 will produce more dispersion around the true population coefficient—and therefore a distribution with "fatter tails.

We have a saying that a snake is never as long as the stick to which we liken its length.

There is no reliable data on the number of military-style assault weapons in private hands, but the working estimate is about 1.5 million.

Based on the number of viruses she found in her samples, Proctor estimated that every liter of seawater contained up to one hundred billion viruses.

We usually speak of probability when we do not have all the data.

In fact, studies show that people are terrible at estimating their abilities.

Criticism is the art of appraising others at one's own value.

There must be at least 500 million rats in the United States; of course, I am speaking only from memory.

I shall always consider the best guesser the best prophet.

It is a very delicate job to forgive a man, without lowering him in his estimation, and yours too.

There is no data on the future.

In the U.S.A. or Europe there is no realistic way to estimate the type, magnitude, or probability of the risk, nor any way to narrow down the potentially affected regions.

The word capital, as philologists trace it, comes down to us from a time when wealth was estimated in cattle, and a man's income depended upon the number of head he could keep for their increase.

I've been &amp am absurdly over-estimated. There are no supermen &amp I'm quite ordinary, &amp will say so whatever the artistic results. In that point I'm one of the few people who tell the truth about myself.

I measure in my palm and use my eyes to estimate amounts; a tablespoon is a full palm of dried spices.