Question:
If 7/10 is the probability of occurrence of an event, what is the probability that it does not occur?
Solution:
We know that,
Probability of occurring $=1$ - the probability of not occurring
Given the probability of occurrence $=\frac{7}{10}$
Therefore, the probability of not occurrence $=1-\frac{7}{10}$
$=\frac{3}{10}$
Conclusion: Probability of not occurrence is $\frac{3}{10}$
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