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Jean Said:

What is the answer to this statistics problem?

We Answered:

Thats a hard one... sorry

Michele Said:

Statistics question I have no idea how to start -please help someone!?

We Answered:

Start by drawing a Normal curve. You know, the bell shaped curve with the mean in the middle.
Then, use the table with the standard normal probabilities (should be in your textbook) and find what's closest to .33 in the body of the table. See what z-score matches up with it. That z-score is the number of standard deviations from the mean, so multiply it by the standard dev. $500, and add that to the mean! Hope that helped! But isn't the AP stat test over?

Donald Said:

Statistics Question. How to do this Expected Value Problem?

We Answered:

Let $x be the premium that the company should charge if it wants the expected gain to be equal to $1000.

So, the expected gain is
Ux = x*(1-0.01)+(x-50000)*0.01
i.e., 1000 = x*0.99+(x-50000)*0.01
1000 = 0.99x + 0.01x - 500
x - 500 = 1000
x = 1000+500
x = 1500

So, the company should charge a premium of $1500 if it wants to earn a expected gain of $1000.

Hope this helps.

Katherine Said:

Car Insurance companies determine your premium based on age/marital status/job/gender/credit (see below)?

We Answered:

No, that's not really part of rating risk. I don't even think there's any data to back up whether one race is a higher risk than another. The age thing is defintely something that can be backed up. What a controversial position to take.

Joanne Said:

does anyone know of statistics wether seat belt or cell phones ban actually save lives and by how much?

We Answered:

yes by about 80 percent