
David B. answered 05/20/21
Math and Statistics need not be scary
It depends on what lottery, but most state run lotteries where winning numbers are picked at random by drawing numbers without replacement from a source of numbers. You , the purchaser have to guess in advance the pick.
binomial or hypergeometric? The answer is in the definition (as is true for most problems in math)
so here is the definition :
In probability theory and statistics, the hypergeometric distribution is a discrete probability distribution that describes the probability of k successes (random draws for which the object drawn has a specified feature) in n draws, without replacement, from a finite population of size N that contains exactly K objects with that feature, wherein each draw is either a success or a failure. In contrast, the binomial distribution describes the probability of k successes in n draws with replacement.
So, which definition do YOU think is right? I know, you should know too now.,