Asked by AmmanJordan

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

Answers

Answered by Din123
the number of times positive numbers appear is 160
Answered by Din123
the sum of the positive numbers drawn is 240
Answered by AmmanJordan
Thanks you Din 123, the answer of B is 0 the 1 and 3 are correct.
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