Students at a virtual school are allowed to sign up for one math class each year. The numbers of students signing up for various math classes for the next school year are given in the following table: Grade Geometry Algebra II Pre-Calculus AP Statistics Total
10th 150 75 25 5 255
11th 50 100 75 20 245
12th 10 50 100 65 225
Total 210 225 200 90 725
Part A: What is the probability that a student will take AP Statistics? (2 points)

Part B: What is the probability that a 12th-grader will take either Pre-Calculus or AP Statistics? (2 points)

Part C: What is the probability that a student will take Algebra II given that he or she is in the 11th grade? (2 points)

Part D: Consider the events "A student takes Algebra II" and "A student is a 10th-grader." Are these events independent? Justify your answer. (4 points) (10 points)

What does it mean by solve the exponential equation for x?

What is the most accurate measurement of 1 pound

Part one: measurements 1. measure your own height and arm span (from finger-tip to finger-tip) in inches. you will likely need some from a parent, guardian, or sibling to get accurate measurements. record your measurements on the "data record" document. use the "data record" to you complete part two of this project. name relationship to student x height in inches y arm span in inches archie dad 72 72 ginelle mom 65 66 sarah sister 64 65 meleah sister 66 3/4 67 rachel sister 53 1/2 53 emily auntie 66 1/2 66 hannah myself 66 1/2 69 part two: representation of data with plots 1. using graphing software of your choice, create a scatter plot of your data. predict the line of best fit, and sketch it on your graph. part three: the line of best fit include your scatter plot and the answers to the following questions in your word processing document 1. 1. which variable did you plot on the x-axis, and which variable did you plot on the y-axis? explain why you assigned the variables in that way. 2. write the equation of the line of best fit using the slope-intercept formula $y = mx + b$. show all your work, including the points used to determine the slope and how the equation was determined. 3. what does the slope of the line represent within the context of your graph? what does the y-intercept represent? 5. use the line of best fit to you to describe the data correlation.