For A Certain Class, The Following Data Table Summarizes The Amount Of Sleep Of Students And Whether Or Not They Have An A In The Class. What Is The Probability That A Student Chosen Randomly From The Class Is A Student Who Slept More Than 6 Hours Who

Sure, certain, positive, cocksure mean having no doubt or uncertainty. Sure usually stresses the subjective or intuitive feeling of assurance. Certain may apply to a basing of a conclusion or.

See examples of certain used in a sentence. Having no doubt or knowing exactly that something is true, or known to be true, correct, exact.. If you are certain about something, you firmly believe it is true and have no doubt about it.

If you are not certain about something, you do not have definite knowledge about it. (postpositive) positive and confident about the truth of something; I am certain that he wrote a book.

It is certain that they were on the bus. [before a noun] (used before a person or thing that is known in the mind of the speaker or writer, but that is being introduced to the listener): Jan 20, 2026certain (comparative more certain or certainer, superlative most certain or certainest) sure in one's mind, positive;

Absolutely confident in the truth of something. Certain meaning, definition, what is certain: Certain can mean "definite" or "sure to happen," like getting wet, a certain outcome of not having an umbrella in a rainstorm.

Definition of certain adjective in oxford advanced learner's dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.