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deena7
26.07.2019 •
Mathematics
There are 9 yellow and 4 purple balls in a bag. if you randomly choose balls one at a time, with replacement, what is the probability of choosing 1 yellow ball and then 2 purple balls? 165/5210 24/1329 144/2197 28/1335
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Ответ:
1st pick would be 9/13 probability of picking yellow
2nd pick would be 4/13 probability
3rd pick would be 4/13 probability
total probability : 9/13 * 4/13 * 4/13 = 144/2197
Ответ:
because his mother is a widow and Jerry an only child, she is protective of her son; likewise, Jerry feels emotionally tied to her.
Explanation: