\( \mathrm{E}_{1}, \mathrm{E}_{2} \) and \( \mathrm{E}_{3} \) are all the possible elementary ev...

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\( \mathrm{E}_{1}, \mathrm{E}_{2} \) and \( \mathrm{E}_{3} \) are all the possible elementary events of a random experiment, if \( \mathrm{P}\left(\mathrm{E}_{1}\right)=0.34, \mathrm{P}\left(\mathrm{E}_{2}\right)= \) 0.51 , then \( \mathrm{P}\left(\mathrm{E}_{3}\right) \) and \( \mathrm{P}\left(\overline{\mathrm{E}_{3}}\right) \) is
a. 0.15
b. 0.66
c. 0.75
d. 0.85
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