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The probability of an event not happening is 1 minus the probability of the event happening. Five of the twelve balls are red so the probability of selecting a red ball is 5/12. The probability of not sel...

PQA stands for 'point, quote, analysis'. In a literary text, you may be asked to highlight the features which strenghten your essay's argument. To do so, it is best to first:

1) State the...

The conditionnel is used either as a form of politesse, to express a wish, to express a possibility, or an action completed with a condition. 

Avogadro's number is simply used as a way of telling us how much of a substance we have. 

The number is 6.022 x 10²³, and if we have that number of particles, we can make it ea...

The subjunctive is usually used to express doubt ("je ne suis pas sure que'), a possibility ('il est possible que'), or following certain phrases, such as 'bienque', 'pourvu que' and 'quoique'. It...