A computer is used to randomly select a number between 1 and 2000. Event A is selecting 460.

To calculate the probability of event A happening, we need to determine the total number of possible outcomes and the number of favorable outcomes.

In this case, the computer randomly selects a number between 1 and 2000. So, there are 2000 possible outcomes.

Since event A is selecting the number 460, there is only 1 favorable outcome.

To calculate the probability, we divide the number of favorable outcomes (1) by the total number of possible outcomes (2000):

Probability of event A = Number of favorable outcomes / Total number of possible outcomes
= 1 / 2000
= 0.0005 or 0.05%

Therefore, the probability of event A happening, which is selecting the number 460, is 0.0005 or 0.05%.

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