Quartiles for grouped data are calculated using class intervals and frequencies, while quartiles for ungrouped data are calculated directly from individual values., TRUE, FALSE, Quartiles are useful in real-life situations because they show how scores or values are distributed within a group., TRUE, FALSE, The third quartile (Q3) represents the middle value of the data set., TRUE, FALSE, Quartiles can help us compare students’ scores, heights, or allowances to see who is above or below average., TRUE, FALSE, Ms. Santos recorded the exam scores of 15 students and arranged them from lowest to highest without grouping them into intervals. She then used the position formula to find Q1, Q2, and Q3. This is an example of calculating quartiles for grouped data.5., TRUE, FALSE

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