For a city marathon, the organizers originally estimated they needed about 5400 water bottles for the crowd of 3000 people. Now, they estimate that about 34200 people will come. How many water bottles should they prepare? Write ONLY your answer(s) in the box below. On your own paper, show all your work and justify your answer(s). You will be submitting the paper at the end of this test. 

Imagine a Magic Dollar bill, which makes a clone of itself (thus doubling in number) every day. On Day 1, you found one Magic Dollar bill. On Day 2, there were two Magic Dollar bills. On Day 3, there were four, and so on.  How many Magic Dollar Bills will there be on Day 2200 ? (Yes, it is a large number.)  Write ONLY your answer in the response box. Show your work which justifies your answer ON YOUR PAPER. Be sure to answer the question according to what was covered in this course. Do not include anything extra. 

Your test score is not valid until you sign and date below.  I pledge that I will follow all exam policies including (but not limited to) the following:  I will not communicate with anyone during my exam. I will not use any materials not authorized by my instructor.  Except for a calculator, I will not use any device, app, or AI to aid my exam.  The only website I can use is this test page on Canvas to take the exam.  I will NOT copy and paste any questions or parts thereof.  I will follow all COC policies of academic integrity. I understand that academic dishonesty may result in getting a zero (0 out of 100) on this test. Type your full name and today’s date in the box below. By entering your name below, you acknowledge and agree to the aforementioned terms and conditions.  

The population of a suburban town is growing linearly. Last year, the population was 100,000. This year, it is 125,000. What will be the population 2 years from now? 

Which election method is described by the following rule? “The candidate with the fewest first-place votes is eliminated, and the preference schedule is adjusted accordingly. Repeat this process until only one candidate remains. He/she is the winner.”

Suppose your monthly payment on a 30-year mortgage is $1800. Your total payment over the 30-year period  _____________

Suppose that scores of a certain standardized test is normally distributed with a mean of 70 and a standard deviation of 7. Find the probability that a random score is less than 77. Use the table below. Use a decimal number (for instance, if the probability is 60%, use 0.6).  Write ONLY your answer in the response box. Show your work which justifies your answer ON YOUR PAPER.

A magnitude 6.9 earthquake (on the Richter scale) releases 13100 times as much energy as a magnitude 4.9 earthquake.

Suppose that a musical instrument is tuned to A4=440 cps (cycles per second). The note one octave higher, A5, is 880 cps. The note another octave higher, A6, is not 1320 cps. 

A company manufactures tens of thousands of tennis balls every day. A quality control person inspects every 100th ball to be sure that the dimensions are correct. What type of sampling is this?