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This definition encompasses random variables that are generated by processes that are discrete, continuous, neither, or mixed. The variance can also be thought of as the covariance of a random variable with itself:
A postman collecting mail for delivery. The mail or post is a system for physically transporting postcards, letters, and parcels. [1] A postal service can be private or public, though many governments place restrictions on private systems.
Erotica is art, literature or photography that deals substantively with subject matter that is erotic, sexually stimulating or sexually arousing.Some critics regard pornography as a type of erotica, but many consider it to be different.
A kylix depicting Silenus having sex with a fawn, dated after 500 BC. Roman oil lamp dating from 1st–3rd century AD depicting a zoophilic act. The historical perspective on zoophilia and bestiality varies greatly, from the prehistoric era, where depictions of bestiality appear in European rock art, [6] to the Middle Ages, where bestiality was met with execution.
ʿIzz ad-Dīn ibn Abd al-Qāder ibn Mustafā ibn Yūsuf ibn Muhammad al-Qassām (Arabic: عز الدين بن عبد القادر بن مصطفى بن يوسف بن محمد القسام; 1881 [1] or 19 December 1882 [2] [3] – 20 November 1935) was a Syrian Muslim preacher, and a leader in the local struggles against British and French Mandatory rule in the Levant, and a militant opponent of ...
In mammals, the vulva (pl.: vulvas or vulvae) comprises mostly external, visible structures of the female genitalia leading away from the interior parts of the female reproductive tract, starting at the vaginal opening.
The definition of the term planet has changed several times since the word was coined by the ancient Greeks. Greek astronomers employed the term ἀστέρες πλανῆται (asteres planetai), 'wandering stars', for star-like objects which apparently moved over the sky.
Penile-vaginal intercourse or vaginal intercourse is a form of penetrative sexual intercourse in human sexuality, in which an erect penis is inserted into a vagina. [1] Synonyms are: vaginal sex, cohabitation, coitus (Latin: coitus per vaginam), (in elegant colloquial language) intimacy, or (poetic) lovemaking.