Problem 1. Each of Ivan and Peter choose a random natural number from 1 to 10. What is the probability that the number of Peter is larger than the number of Ivan?
P = 45/100 = 0,45
You can figure it out from the graphics of problem 1 on the page:
Problem 1'. Each of Ivan and Peter choose a random natural number from 1 to 10. What is the probability that the number of Peter is larger OR EQUAL than the number of Ivan?
P = 55/100 = 0,55
Problem 1''. Each of Ivan and Peter choose a random natural number from 1 to 100. What is the probability that the number of Peter is larger than the number of Ivan and what is the probability that the number of Peter is larger or equal than the number of Ivan?
P(a) = 4950/10000 = 0,495
P(b) = (4950+100)/10000 = 0,505
Problem 2. Each of Ivan and Peter choose a random natural number from 1 to 10. What is the probability that the number of Peter is larger than the number of Ivan and at the same time the number of Peter is lower than 5?
Problem 3. Each of Ivan and Peter choose a random natural number from 1 to 10. What is the probability that the number of Peter is larger than the number of Ivan and at the same time the number of Ivan is lower than 5?
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Problem 1. Each of Ivan and Peter choose a random natural number from 1 to 10. What is the probability that the number of Peter is larger than the number of Ivan?
Problem 1'. Each of Ivan and Peter choose a random natural number from 1 to 10. What is the probability that the number of Peter is larger OR EQUAL than the number of Ivan?
Problem 1''. Each of Ivan and Peter choose a random natural number from 1 to 100. What is the probability that the number of Peter is larger than the number of Ivan and what is the probability that the number of Peter is larger or equal than the number of Ivan?
Problem 2. Each of Ivan and Peter choose a random natural number from 1 to 10. What is the probability that the number of Peter is larger than the number of Ivan and at the same time the number of Peter is lower than 5?
Problem 3. Each of Ivan and Peter choose a random natural number from 1 to 10. What is the probability that the number of Peter is larger than the number of Ivan and at the same time the number of Ivan is lower than 5?
Problems for you:
1. Find P(y>x | x<5 | y<5) where y is Peter and x is Ivan
2. Find P(x>y | y>2 | x<8)
3. Find the solutions of the problems with REAL numbers instead of natural
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