1. Honors Statistics November 7-10, 2011

2. Monday, November 7, 2011 AP Statistics A 1.Write a paragraph describing how you would find the middle 50% of a normally-distributed population. Then calculate the z values for such a population. 2.An self-professed elite school accepts only the upper 7.5% of the class based on SAT verbal scores. Assuming a mean of 500 and standard deviation of 100, what is the minimum SAT score a student needs to achieve in order to qualify for this school?

3. Tuesday, November 8, 2011 AP Statistics Awarm-up 1.A normally-distributed population has 63.6% of its population at a value of 14.2 with a standard deviation of 4.2. What is the mean of the distribution? 2.What percentage of a normal distribution lies above 1.54 standard deviations?

4. Tuesday, November 8, 2011 Quiz instructions 1.Clear your desks of everything except the z- table, your notebook, and your calculator. 2.Write your answers in the test booklet provided. 3.Be sure to show your work. An unsupported correct answer receives practically no credit. 4.If you finish early, read or work on other classes. If you talk, I will take that into consideration when calculating your 10% cooperation grade.

5. Wednesday, November 9, 2011 AP Statistics A warm-up 1.Area to z-score/mean: what is the mean of a normally-distributed population if the standard deviation is.5 and the point at which 15.6% of the population lies below 8.7? 2.Area to z-score/standard deviation: what is the standard deviation of a normally- distributed population whose mean is 20 and where 26% of the population lies below 15.6?

6. Thursday, November 10, 2011 AP Statistics A warm-up 1.Area to z-score/mean: what is the mean of a normally-distributed population if the standard deviation is 3.89 and the point at which 29.8% of the population lies below 28.3? 2.Area to z-score/standard deviation: what is the standard deviation of a normally- distributed population whose mean is 38 and where 44.6% of the population lies below 30.7?

7. Thursday, November 10, 2011 AP Statistics A changes (Q2) Grading scale: Homework:20% Projects: 20% Quizzes:40% Final:20% HW due at the beginning of class; late HW gets no credit Students receiving lower than a B are required to attend mandatory Tu-Th tutoring, 3-4 pm. (extra credit for those attending with A’s and B’s) (Hickman will also be present to tutor in government/economics)