can any math genius out there help me?

[gcf101]

<p>

@megaman123

One person in every 1000 of a population is known to have tuberculosis. When tested, there is a 95% chance that a person with tuberculosis will in fact register positive. What are the chances of a person from this population having tuberculosis will also be tested positive?

there is a 95% chance that a person with tuberculosis will register positive
is actually the answer to
What are the chances that a person from this population having tuberculosis will be tested positive?
It’s 95%.</p>

<p>Optimizerdad optimized the question in a simple(x) way:

@Optimizerdad

What are the chances that a person selected from this population will have tuberculosis and will also be tested positive?
(1/1000) (0.95)

</p>

<p>Let’s try a similar question:
What are the chances that a randomly selected person will not have tuberculosis and will be tested positive?<a href=“yikes!”>/u</a>
Not enough information to answer it.</p>

<p>If we know that
When tested, there is a 1% chance that a person with no tuberculosis will register positive,
than we can answer that question:
1000 - 1 = 999
(999/1000) (0.01).</p>

<p>To be continued.</p>