Mini Research In — Math Grade 10 Pdf

You can copy this text directly into a Word or Google Doc and save it as a PDF. The Math of Your Phone: Is There a Linear Relationship Between Screen Size and Battery Life?

In this mini research, we will collect data from real phones to see if the relationship is linear (a straight line), positive (bigger screen = bigger battery), or if there is no clear relationship. Based on common sense, a larger screen requires more energy to light up. Therefore, phone manufacturers usually put a larger battery inside a phone with a larger screen. mini research in math grade 10 pdf

Mathematics (Linear Relations, Data Analysis, Correlation) You can copy this text directly into a

Grade 10 Student Researcher

y = 1058x – 1174 Step 3: Check Correlation Looking at the data, most points are close to the line, but there are outliers (e.g., iPhone 15 Pro Max has a smaller battery than expected for its size). This suggests a moderate to strong positive correlation (estimated correlation coefficient r ≈ 0.85). 6. Conclusion (Answering the Question) Does a linear relationship exist? Yes. Our data supports the hypothesis that screen size and battery capacity have a positive linear relationship. Based on common sense, a larger screen requires