Statistics Problems With Solutions Problem 1 In one state, 52% of the voters are Republicans, and 48% are Democrats. In a second state, 47% of the voters are Republicans, and 53% are Democrats. Suppose a simple random sample of 100 voters are surveyed from each state. What is the probability that the survey will show a greater percentage of Republican voters in the second state than in the first state? Solution Coping With Math Anxiety What Is Math Anxiety? A famous stage actress was once asked if she had ever suffered from stage-fright, and if so how she had gotten over it. She laughed at the interviewer’s naive assumption that, since she was an accomplished actress now, she must not feel that kind of anxiety. She assured him that she had always had stage fright, and that she had never gotten over it.
Free Trigonometry Practice Tests Our completely free Trigonometry practice tests are the perfect way to brush up your skills. Take one of our many Trigonometry practice tests for a run-through of commonly asked questions. You will receive incredibly detailed scoring results at the end of your Trigonometry practice test to help you identify your strengths and weaknesses. What is Zac Browser What is Zac Browser ZAC is the first web browser developed specifically for children with autism and autism spectrum disorders such as Asperger syndrome, pervasive developmental disorders (PDD) and PDD-NOS. We have made this browser for children… for their enjoyment, enrichment, and freedom. Children touch it, use it, play it, interact with it and experience independence through ZAC.
CME Project About the Program. The CME Project, developed by EDC’s Center for Mathematics Education and published by Pearson, is a coherent, four-year, NSF-funded high school mathematics program designed around how knowledge is organized and generated within mathematics: the themes of algebra, geometry, and analysis. The CME Project sees these branches of mathematics not only as compartments for certain kinds of results, but also as descriptors for methods and approaches—the habits of mind that determine how knowledge is organized and generated within mathematics itself. Dave's Short Trig Course Table of Contents Who should take this course? Trigonometry for you Your background How to learn trigonometry Applications of trigonometry Astronomy and geography Engineering and physics Mathematics and its applications What is trigonometry? Trigonometry as computational geometry Angle measurement and tables Background on geometry The Pythagorean theorem An explanation of the Pythagorean theorem Similar triangles Angle measurement The concept of angle Radians and arc length Exercises, hints, and answers About digits of accuracy Chords What is a chord? Ptolemy’s sum and difference formulas Ptolemy’s theorem The sum formula for sines The other sum and difference formulas Summary of trigonometric formulas Formulas for arcs and sectors of circles Formulas for right triangles Formulas for oblique triangles Formulas for areas of triangles Summary of trigonometric identities More important identities Less important identities Truly obscure identities About the Java applet.
All Educational Productions Lists of Nobel Prizes and Laureates All Productions Nobelprize.org's educational section consists of 46 productions. Questioning My Metacognition Check out Dan’s Blog or watch Math Class Needs a Makeover ***click here for the question and big idea of each task *** Recording Sheets Kindergarten Recording Sheet 3-Act Recording Sheet Want more of the good stuff? Dan Meyer’s 3-Act Tasks (6-12)