title: Generating random number in a given range in Fortran 77
body: <p>I am a beginner trying to do some engineering experiments using fortran 77. I am using Force 2.0 compiler and editor. I have the following queries:</p>
  
  <ol>
  <li>How can I generate a random number between a specified range, e.g. if I need to generate a single random number between 3.0 and 10.0, how can I do that?</li>
  <li>How can I use the data from a text file to be called in calculations in my program. e.g I have temperature, pressure and humidity values (hourly values for a day, so total 24 values in each text file).</li>
  <li>Do I also need to define in the program how many values are there in the text file?</li>
  </ol>