title: Using R to count how many in Dataset after filtering
body: <p>Question: How many people in the dataset are age 25 or younger and are passengers? Use PERSON_TYPE and AGE to answer this question.</p>
  <p>Code. people is the name I set for the dataset:</p>
  <pre><code>library(tidyverse)
      people %&gt;%
    filter(
      AGE &lt;= 25 &amp;
      PERSON_TYPE == &quot;PASSENGERS&quot;) %&gt;%
    count()
  </code></pre>
  <p>I am getting 0. Based on notes from the lecture and a similar problem, I don't understand why I am getting 0. There is another problem similar to this where I am also getting 0 when I try finding how many.</p>