mirror of
https://github.com/HananoshikaYomaru/openfreebooks.git
synced 2026-11-12 20:45:52 +00:00
27 lines
1.2 KiB
HTML
27 lines
1.2 KiB
HTML
<div class="book-prose">
|
|
<h2 id="checkpoints" class="book-prose__heading">Checkpoints</h2>
|
|
<details class="book-question">
|
|
<summary class="book-question__prompt">A fair die is rolled. Find \(P(\text{prime})\).</summary>
|
|
<div class="book-question__solution">
|
|
<p><strong>Answer:</strong> \(\frac{3}{6}=\frac12\) (2,3,5).</p>
|
|
</div>
|
|
</details>
|
|
<details class="book-question">
|
|
<summary class="book-question__prompt">A bag has 4 red and 6 blue balls. Find \(P(\text{not red})\).</summary>
|
|
<div class="book-question__solution">
|
|
<p><strong>Answer:</strong> \(\frac{6}{10}=\frac35\).</p>
|
|
</div>
|
|
</details>
|
|
<details class="book-question">
|
|
<summary class="book-question__prompt">For independent events, \(P(A)=0.3,P(B)=0.4\). Find \(P(A\cap B)\).</summary>
|
|
<div class="book-question__solution">
|
|
<p><strong>Answer:</strong> \(0.12\).</p>
|
|
</div>
|
|
</details>
|
|
<details class="book-question">
|
|
<summary class="book-question__prompt">An event occurs 18 times in 50 trials. Estimate probability.</summary>
|
|
<div class="book-question__solution">
|
|
<p><strong>Answer:</strong> \(\frac{18}{50}=0.36\).</p>
|
|
</div>
|
|
</details>
|
|
</div>
|