Answer:

Step-by-step explanation:
Given



Required
Determine 
From laws of probability, we have:

Substitute in values


Hence,
<em> is calculated to be 0.557</em>
This is the "commutative property of addition." The order in which you add numbers together doesn't matter, and doesn't change your final results.
Answer:
1.875
Step-by-step explanation:
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