Measures of Position of quartile for Grouped data

12 5 Simplify the equation, Q3 = 90.5 + 2 5 = 60.5 + 1.45 Then, Q3= 91.96 Therefore, 75% of the students have a scores greater than or equal to 91.96. The third quartile 91.96 falls within the class boundaries of 91- 95 which is 90.5 - 94.5. Ill - Practice Task: The distribution table below shows the height in centimeters of 35 grade 10 students in Catanduanes National High School. Calculate the Q1, Q2, Q3, and interpret the results. Weight Class Frequency (f) Lower Boundary Greater than Interval (LB) Cumulative Frequency (>cf) 120 - 124 2 119.5 2 125 - 129 4 124.5 6 130 - 134 9 129.5 15 135 - 139 10 134.5 25 140 - 144 9 139.5 34 145 - 149 1 144.5 35 IV - Reflection (Answer the guide questions below) 1. What have you learned on this lesson? 2. Did you have difficulties in answering the activities? Which part? 3. Which part of the activity sheet did you enjoy most? V - Rubrics Answers the Problem Points Correct and complete solution of the problem 4 Computational error, partial of the answer is correct, no 3 answer statement, or answer labeled incorrectly 9