title: Why is 'cars %>% filter (cylinders == 8, mpg > 18)' returning an incorrect value in R?
body: <p>My code is: <code>cars %&gt;% filter (cylinders == 8, mpg &gt; 18)</code> and is returning the results shown in the photo attached -</p>
  <p><img src="https://i.stack.imgur.com/n86ZY.png." alt="enter image description here" /></p>
  <p>The results are all correct aside from the top row which has a mpg of 9. Why is this result being included and how do I rectify this?</p>