# Math Help - statistics question-proportion

1. ## statistics question-proportion

Help with the question that I have attached.

2. ## Re: statistics question-proportion

Originally Posted by jujumaan
Help with the question that I have attached.
This is a uniform distribution. You need to shade the area corresponding to $-1 \leq t \leq 1$ (why) and then say what proportion of the total area it is, either noting that the total area under the line is equal 1 (why?) or using symmetry.

If you need more help, you will need to say exactly where you're still stuck.

3. ## Re: statistics question-proportion

Ok thank you, but I am still confused as to which part of the graph that I shade. Could you be more specific as to which part of the graph I am shading, such as the left or right side?

4. ## Re: statistics question-proportion

Originally Posted by jujumaan
Ok thank you, but I am still confused as to which part of the graph that I shade. Could you be more specific as to which part of the graph I am shading, such as the left or right side?
Well, I'd assume that t = 0 corresponds to the class finishing exactly on time. So, with this in mind, go back and think about the values of t I gave in my first reply.