AP Statistics Project Help

<p>I know there are people here better than Statistics than I am, so I'm going to faithfully ask you all for help. The project seems straight forward enough... maybe a little too simple. I've already done these problems, I'm simply trying to verify my answers to make certain that they're right.</p>

<p>I'm going to ignore the backround information and just give the tables, directions, and questions.</p>

<p>Single Adults and Adults with Juveniles
Observation Unit / Looked Both Ways / Didn't Look Both Ways
Adult Male (Alone) / 98 /65<br>
Adult Male (Alone) / 127 / 64<br>
Adult Male (With Juveniles) / 28 / 6<br>
Adult Male (With Juveniles) / 62 / 19 </p>

<pre><code> Male/Female Adult Pairs
</code></pre>

<p>Both Male and Female Adults Look Both Ways / 71
Neither Adult Looks Both Ways / 25
Male Looks Both Ways, Female Doesn't / 31
Female Looks Both Ways, Male Doesn't / 17</p>

<p>First part, I have to find the probabilities including defining symbols for the events, indicating the fomulas I'm using, and calculate the requested esimates of the probabilities, showing the substitutions as well.</p>

<p>Seems easy enough, but it's the directions that are confusing me.
1) What is the probability that an adult male looks both ways at a crossing?</p>

<p>Is there a formula for this kinda of probability calculation?</p>

<p>3) What is the probability than an adult male, alone, looks both ways at a crossing?</p>

<p>This calculation is very straight forward, but I don't know if I'm missing a formula or what not.</p>

<p>If you guys could, could you all help me figure out the formula situation? Also, if you could, could you also tell me what you get for number 1, just to verify that I did the calculation correctly? I'm sorry if the tables are a bit confusing to follow, I tried my best on them.</p>

<p>Anybody? I'm not asking you to do my project for me, I'm just asking for clarification on a few things.</p>