title: How to select random number
body: <p>I need to get a random number in C#, within <code>(-15, 15)</code> but without generate values between <code>(-10, 10)</code> as float numbers. Like the random should come with in <code>(-15,-10)</code> and <code>(10,15)</code>.</p>
  
  <p>Is it possible to get?</p>