If 7/10 is the probability of occurrence of an event

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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