1. (5.7.1) Suppose a student's nal grade in a biology course is determined using the following weights: Quizzes are worth 5% Exam 1 is worth 20% Exam 2 is worth 20% Lab reports are worth 15% Research paper is worth 15% Final exam is worth 25% Just before the final, she has earned the following grades (all out of 100): Lab report grades: 75, 90, 85, 59, 70, 75, 80, 75 Quiz grades: 85, 80, 0, 60, 70, 80, 80, 75 Exam 1: 80 Exam 2: 70 Paper: 85 a. What is her lab report average? b. What is her quiz average? c. What is her course average just before the final? d. For a B she needs a course average of at least 82%. What is the lowest grade she can get on the final and achieve that goal? 2 (5.7.2) On October 20, 2011 the Elizabeth Warren campaign provided The Boston Globe with the data we used to draw Figure 5.5. The rst bar in the chart shows the total dollar contributions to her campaign, broken down according to where the money came from (Massachusetts vs. out of state}. The second bar shows the total number of donors broken down the same way as83. 14m .' a. What was the average donation (per donor)? b. What was the average donation from Massachusetts? c. What was the average donation from outside Massachusetts? -Masaactuens d. Check that calculating appropriate weighted average of _ \"0'9\"! your answers in parts b and c gives the answer you found in Him Wang's Fundraising part a. Figure 5.5. Where did the moneyoome from? [R152]