Get random number with weighted probability [closed]

I want to get random numbers with weighted probabilities. Higher the number, lesser the probability.

For example-
I want to create a method getRandomNumbers() to get random numbers between 0 and 9 (including these numbers). But, 0 must have the highest probability, followed by 1 and 9 must be returned with the least probability i.e. the least number of times.

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Code not necessarily required. Anything ranging from algo, to explanation to pseudo code would do the trick.