title: How can I overlay 2 normal distribution curves on the same plot?
body: <p>I'm brand new to R, and I'm facing a problem without much in- class resources. I need to do something that I'm sure is very simple. Can someone point me in the right direction? This is my task:</p>
  
  <blockquote>
    <p>Let X denote the monthly return on Microsoft Stock and let Y denote
    the monthly return on Starbucks stock. Assume that X∼N(0.05,(0.10)2)
    and Y∼N(0.025,(0.05)2).</p>
    
    <p>Using a grid of values between –0.25 and 0.35, plot the normal curves
    for X and Y. Make sure that both normal curves are on the same plot.</p>
  </blockquote>
  
  <p>I've only been able to get a randomly generated normal distribution generated, but not both on the same plot, and not by specifying mean and st dev. Big thanks in advance.</p>