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Using Venn probabilities, and supposing the incomplete probabilities, it is found that there is a 0.35 = 35% probability that a randomly-chosen book from the library is fiction or has a white cover.
<h3>What is a Venn probability?</h3>In a Venn probability, two non-independent events are related with each other, as are their probabilities.
The first step to solve a problem using Venn probabilities is identifying the events. In this problem, they are:
- Event A: Fiction.
- Event B: White cover.
The "or probability" is given by:
In this problem:
- The probability that a randomly-chosen book is fiction is 0.15, hence
.
- The probability that randomly-chosen book has a white cover is 0.3, hence
- The probability that a randomly-chosen book is fiction and has a white cover is 0.1, hence
Then:
0.35 = 35% probability that a randomly-chosen book from the library is fiction or has a white cover.
You can learn more about Venn probabilities at brainly.com/question/25698611