eddie6242
11.11.2019 •
Mathematics
You have 2 red balls, 4 green balls, and 5 purple balls. you draw a ball from the bag, record its color, and keep it. you continue drawing without replacement until you get a ball that matches the first ball. what is the probability that it takes exactly 3 additional draws (not including draw 0) to get a matching ball?
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Ответ:
answer:
4
step-by-step explanation:
Ответ:
cubric trinomial
Step-by-step explanation: