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Construct the sample space diagram from the following situation:

In a city, the crime record shows that 10% of all crimes are violent and 90% are not violent. Additionally, 75% of violent crimes are reported, while 60% of nonviolent crimes are reported.

What is the probability that a crime is violent and reported? In the diagram, show the events and their intersections with their probabilities.

Answer :

The probability that a crime is violent and reported can be determined by multiplying the probabilities of each event: P(violent) * P(reported | violent).

Step 1: Determine the probabilities of each event.

According to the given information, 10% of all crimes are violent, so the probability of a crime being violent is 0.10 (P(violent) = 0.10). Similarly, 75% of violent crimes are reported, so the probability of a violent crime being reported is 0.75 (P(reported | violent) = 0.75).

Step 2: Multiply the probabilities of each event.

To calculate the probability that a crime is both violent and reported, we multiply the probabilities: P(violent) * P(reported | violent) = 0.10 * 0.75 = 0.075.

Step 3: Interpret the result.

The probability that a crime is violent and reported is 0.075 or 7.5%. This means that out of all the crimes, there is a 7.5% chance that a crime is both violent and reported.

Learn more about Probabilities

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