400 draws are made at random with replacement from 5 tickets that are marked -2, -1, 0, 1, and 2 respectively. Find the expected value of:

1.the sum of all the numbers drawn
2.the sum of the positive numbers drawn
3.the number of times positive numbers appear

Question

400 draws are made at random with replacement from 5 tickets that are marked  -2, -1, 0, 1, and 2 respectively. Find the expected value of:

1.the sum of all the numbers drawn
2.the sum of the positive numbers drawn
3.the number of times positive numbers appear

goformit100 · Answer

First of all for solving this question do you know the conception of : Basic coordinate Geometry.

And after doing that, I personally guarantee that you can on your own solve this particular question.
I personally believe, the happiness of solving Mathematics is much better.