Calculus and Above

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I am getting a PhD...

I am getting a PhD in higher education administration and I'm in Educational Statistics.

Here's the question that I have:

In a certain high risk group, the chances of a person getting infected with a virus are 60%. If 4 people are selected, find the probability that at least one person is infected.

I have tried EVERYTHING - HELP!!!!

Here's the question that I have:

In a certain high risk group, the chances of a person getting infected with a virus are 60%. If 4 people are selected, find the probability that at least one person is infected.

I have tried EVERYTHING - HELP!!!!

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