Leo is going to use a random number generator 400 times. Each time he uses it, he will get a 1, 2, 3, 4, or 5. What is the best prediction for the number of times that Leo will get an odd number?

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Mathematics

Valentino Osborne

20 December, 07:00

Leo is going to use a random number generator 400 times. Each time he uses it, he will get a 1, 2, 3, 4, or 5. What is the best prediction for the number of times that Leo will get an odd number?

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Nicholas · Answer 1

If Leo uses the generator, the total number of odd numbers he can get are 1, 3, and 5. Out of the 5 possible numbers, he has a 3 out of 5 chance of getting an odd number on the first try. For the next 400 however, he has that same probability of getting an odd number. So, 400 multiplied by 3/5 = 240. Leo can expect to get an odd number about 240 times out of the total number of 400 tries.