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Choose the Correct Department: Light Blue Top Tube

The city of Raleigh has 11,100 registered voters. There are two candidates for city council in an upcoming election: Brown and Feliz. The day before the election, a telephone poll of 450 randomly selected registered voters was conducted. 220 said they’d vote for Brown, 197 said they’d vote for Feliz, and 33 were undecided.  Describe the population the surveyors are really interested in.

The answer to this question is 12. _______

Which source of bias is most relevant to the following situation: A winner is chosen on a popular TV show by having people pay to register their vote using a cell phone. 

You deposit $4,000 in an account earning 5% interest compounded monthly.  How much will you have in the account in 15 years? _______

You want to buy a $22,000 car.  The company is offering a 4% interest rate for 36 months.  What will your monthly payments be? _______

Suppose you want to have $300,000 for retirement in 35 years.  Your account earns 7% interest.  How much would you need to deposit in the account each month? _______ How much interest will you earn? _______

You deposit $200 in an account earning 8% interest compounded annually.  How much will you have in the account in 10 years? _______

You can afford a $1,250 per month mortgage payment.  You have found a 30 year loan at 6% interest.  How big of a loan can you afford? _______ How much total money will you pay the loan company? _______ How much of that money is interest? _______

You want to be able to withdraw $35,000 each year for 15 years.  Your account earns 5% interest.  How much do you need in your account at the beginning? _______ How much total money will you pull out of the account? _______ How much of that money is interest? _______