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KillerSteamcar
12.09.2019 •
Mathematics
11. a graduating senior seeking a job has interviews with two companies. after the interviews, he estimates that his chance of getting an offer from the first company is 0.6. he thinks he has a 0.5 chance with the second company, and that the probability that at least one will reject him is 0.8. what is the probability that he gets at least one offer?
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Ответ:
0.2
Step-by-step explanation:
Let F denotes the event that graduate senior will get offer from the first company and S denotes the event that graduate senior will get offer from the second company .
Then, we have :
![P(S)=0.5](/tpl/images/0229/2893/e9fe6.png)
The probability that at least one will reject him ( neither first nor second ) =![P(F'\cap S')=0.8](/tpl/images/0229/2893/66d95.png)
Now,![P(F\cup S)=1-P(F'\cap S')=1-0.8=0.2](/tpl/images/0229/2893/d9d38.png)
Hence, the probability that he gets at least one offer ( either first or second)= 0.2
Ответ:
200ml of toothpaste for 50p
Step-by-step explanation:
200/50=4
and
400/90=4.4444444444444444 (4.45 rounded up)
So, you would be getting more bang for your buck with 200ml for 50p
Hope this helps!