Confidence level

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Confidence level

In risk analysis, the degree of assurance that a specified failure rate is not exceeded.

Confidence Level

In polling and statistics, the degree of certainty in the confidence interval. The confidence level is how likely a pollster or statistician believes the results of a poll are repeatable and non-random. This is expressed as a percentage. For example, if a poll finds that 48% of those polled intend to vote for Candidate A with a 3% confidence interval and a 95% confidence level, this means that the pollster is 95% certain that between 45% and 51% of the population at large will vote for Candidate A.
References in classic literature ?
But when once D'Artagnan found himself near the field of action, all other feelings but that of confidence disappeared never to return.
how eloquent, at least, were her wishes on the side of early warm attachment, and a cheerful confidence in futurity, against that over-anxious caution which seems to insult exertion and distrust Providence
One doubted, the other believed; one had a prudent foresight, the other blind confidence.
She stopped, and looked at me doubtingly, as if she felt far from sure, poor soul, of winning my confidence to begin with.
As long as I am shut out from your confidence, it matters little whether we live on land or at sea--we cannot live happily.
You don't know how your confidence touches me," she said, without looking up.
Although Mrs Nickleby had been made acquainted by her son and daughter with every circumstance of Madeline Bray's history which was known to them; although the responsible situation in which Nicholas stood had been carefully explained to her, and she had been prepared, even for the possible contingency of having to receive the young lady in her own house, improbable as such a result had appeared only a few minutes before it came about, still, Mrs Nickleby, from the moment when this confidence was first reposed in her, late on the previous evening, had remained in an unsatisfactory and profoundly mystified state, from which no explanations or arguments could relieve her, and which every fresh soliloquy and reflection only aggravated more and more.
So the young girl's parents received me as their future son-in-law without, as yet, taking their friends into their confidence.
Place that confidence in the young lady which she so well deserves, and I am certain you will be the happiest father on earth.
I never was so won upon, as by this class; never yielded up my full confidence and esteem so readily and pleasurably, as to them; never can make again, in half a year, so many friends for whom I seem to entertain the regard of half a life.
I have no other trust, than that I have been with her since she came home, and that she has given me her confidence.
Buy one of my pictures, and I assure you, in confidence, it will not be worth the money.