What is the probability of winning a raffle if 500 tickets are sold and you buy 5 of them

Mathematics

2 answers:

Kaylis [27]2 years ago

8 0

You have a %0.01 chance of winning. Good luck.

Lisa [10]2 years ago

4 0

Well you would start with 5/500 then simplify to 1/100

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Read 2 more answers

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Lelechka [254]

Answer:

(a) $P(X=10) = 0.2070$

(b) $P(X\geq 10) = 0.3798$

Step-by-step explanation:

Note that in this problem we have an initial population N = 50, of which 30 fulfill a certain characteristic "m" (belong to the second section). Then, from the population N, a sample of size n = 15 is selected and it is desired to know how many comply with the desired characteristic (second section).

Let X be the number of projects in the second section, then X is a discrete random variable that can be modeled by a hypergeometric distribution.

(a)

Therefore, to answer question (a) we use the following equation presented in the attached image:

Where:

$N = 50\\m = 30\\n = 15\\X = 10$