3. In the data management course, quizzes have a weight of 12%, assignments Quizzes 69% have a weight of 8%, tests have a weight of 45%, and examinations and Tests 73% projects have weight of 30% and 5% respectively. The table to the right Assignments 80% shows the mark of Tommy. Projects 87% a. Calculate Tommy's term mark before the final exam. (round your answer to the nearest tenth %) [2T] b. What mark must Tommy achieve on the final exam to earn a final grade of 90%? (round your answer to the nearest tenth %) [2T] 4. The list below shows the height (cm) of students in a math class. 121 132 200 187 176 153 142 196 182 161 153 164 210 172 154 168 192 189 162 153 (a) Calculate the 70th percentile. [2T] (b) What percentile is a height of 163 cm in relation to the class? [2T] (c) What percentile is a height of 200 cm in relation to the class? [2T] 5. Preparing to make Maple Syrup requires drilling holes in trees, hammering spiles into the trees and hanging buckets on the spiles to collect the sap. The following list contains some of the times required by Mr. N (in seconds) to complete the above steps for this year