This is a great request! Scatter plots are versatile for visualizing correlations, clusters, and outliers across almost any domain.
Here is a list of 100 scatter plot data application ideas, organized into categories to help you structure your app's features and example datasets.
I. Business & Economics (1-20)
| Idea No. | X-Axis (Independent Variable) | Y-Axis (Dependent Variable) | Purpose / Correlation |
| 1 | Advertising Spend ($) | Monthly Sales Revenue ($) | Measure marketing ROI. (Positive Correlation) |
| 2 | Employee Training Hours | Customer Satisfaction Score (CSAT) | Determine training effectiveness. (Positive Correlation) |
| 3 | Website Load Time (Seconds) | Conversion Rate (%) | Identify performance bottlenecks. (Negative Correlation) |
| 4 | Price of Product ($) | Units Sold (Count) | Plot demand elasticity. (Negative Correlation) |
| 5 | Store Square Footage | Annual Profit ($) | Optimize real estate usage. (Positive Correlation) |
| 6 | Days Since Last Maintenance | Machine Downtime (Hours) | Predict maintenance needs. (Positive Correlation) |
| 7 | R&D Investment ($) | Patent Applications Filed | Evaluate innovation output. (Positive Correlation) |
| 8 | CEO Age (Years) | Company Stock Price Change (%) | Look for leadership correlation. (Weak/No Correlation) |
| 9 | Number of Product Features | Customer Retention Rate (%) | Find feature complexity sweet spot. |
| 10 | Monthly Social Media Posts | Website Traffic (Sessions) | Test content strategy impact. |
| 11 | Discount Percentage (%) | Gross Profit Margin (%) | Analyze pricing strategy trade-offs. (Negative Correlation) |
| 12 | Average Customer Wait Time (Min) | Customer Churn Rate (%) | Quantify service impact. (Positive Correlation) |
| 13 | Office Commute Time (Min) | Employee Job Satisfaction Score | Assess work-life balance impact. (Negative Correlation) |
| 14 | Number of Quality Checks | Product Defect Rate (%) | Measure quality control effectiveness. (Negative Correlation) |
| 15 | Industry GDP Growth (%) | Company Revenue Growth (%) | Benchmark performance against the market. |
| 16 | Warehouse Size (Sq Ft) | Shipping Errors (Count) | Detect scaling issues in logistics. |
| 17 | Job Applicant Interview Score | Job Performance Rating (6 months) | Validate hiring process. |
| 18 | Days Inventory Held (DIO) | Cash Conversion Cycle (Days) | Analyze operational efficiency. (Positive Correlation) |
| 19 | Average Sales Cycle Length (Days) | Deal Win Rate (%) | Identify efficient sales process segments. |
| 20 | Debt-to-Equity Ratio | Return on Assets (ROA) (%) | Financial health assessment. |
II. Science & Environment (21-40)
| Idea No. | X-Axis (Independent Variable) | Y-Axis (Dependent Variable) | Purpose / Correlation |
| 21 | Water Temperature ($\text{^{\circ}C}$) | Fish Metabolic Rate ($\text{mg O}_2$/hr) | Study thermal stress. (Positive Correlation) |
| 22 | Plant Sunlight Exposure (Hours/Day) | Plant Growth (Height in cm) | Find optimal growth conditions. |
| 23 | Earthquake Magnitude | Distance from Epicenter (km) | Analyze seismic wave attenuation. (Negative Correlation) |
| 24 | Air Quality Index (AQI) | Emergency Room Visits (Count) | Public health environmental link. (Positive Correlation) |
| 25 | $\text{CO}_2$ Concentration (ppm) | Global Average Temperature ($\text{^{\circ}C}$) | Climate change visualization. (Positive Correlation) |
| 26 | Medication Dosage (mg) | Patient Recovery Time (Days) | Determine effective dosage. (Negative Correlation) |
| 27 | Telescope Aperture (Inches) | Observable Star Magnitude | Astronomy instrument limits. (Positive Correlation) |
| 28 | Soil pH Level | Crop Yield (Tons/Hectare) | Agricultural optimization. |
| 29 | Altitude (Meters) | Atmospheric Pressure (kPa) | Physics/meteorology study. (Negative Correlation) |
| 30 | Predator Population Density | Prey Population Density | Ecological relationship modeling. |
| 31 | Light Wavelength (nm) | Photosynthesis Rate ($\text{O}_2$ Produced) | Study plant light absorption. |
| 32 | Distance from Noise Source (m) | Decibel Level (dB) | Environmental sound pollution. (Negative Correlation) |
| 33 | Ocean Depth (Meters) | Water Salinity (ppt) | Marine science data. |
| 34 | Stellar Mass (Solar Masses) | Stellar Luminosity (Solar Lum.) | The Hertzsprung-Russell diagram (H-R). |
| 35 | Battery Cycle Count | Remaining Capacity (%) | Test battery degradation. (Negative Correlation) |
| 36 | Hours of Study Time | Exam Score (%) | Academic performance predictor. (Positive Correlation) |
| 37 | DNA Base Pair Length | Mutation Rate | Genetic stability analysis. |
| 38 | Rainfall (mm) | River Water Flow Rate ($\text{m}^3$/s) | Hydrology modeling. (Positive Correlation) |
| 39 | Mineral Hardness (Mohs Scale) | Material Density ($\text{g/cm}^3$) | Geochemistry/materials science. |
| 40 | Reaction Temperature ($\text{^{\circ}C}$) | Chemical Reaction Yield (%) | Optimizing laboratory synthesis. |
III. Social & Demographic (41-60)
| Idea No. | X-Axis (Independent Variable) | Y-Axis (Dependent Variable) | Purpose / Correlation |
| 41 | Country $\text{GDP}$ per Capita ($) | Average Life Expectancy (Years) | Wealth and health correlation. (Positive Correlation) |
| 42 | Average Daily Commute Time (Min) | Reported Stress Levels (Scale 1-10) | Quality of life factors. (Positive Correlation) |
| 43 | Teacher-Student Ratio | Average Standardized Test Scores | Education resource impact. |
| 44 | Number of Books Read per Year | Vocabulary Score (Test) | Literacy and comprehension. (Positive Correlation) |
| 45 | City Population Density (People/sq km) | Crime Rate (Incidents/1000) | Urban planning and sociology. |
| 46 | Internet Usage (Hours/Week) | Social Isolation Score | Digital life impact. |
| 47 | Average Years of Schooling | Unemployment Rate (%) | Education and job market. (Negative Correlation) |
| 48 | $\text{CO}_2$ Emissions per Capita | Percentage of Renewable Energy Use | Policy effectiveness comparison. (Negative Correlation) |
| 49 | Household Income ($) | Monthly Healthcare Expenditure ($) | Economic access to care. |
| 50 | Age of First Marriage (Years) | Divorce Rate (%) | Marital stability factors. |
| 51 | Hours Spent Volunteering | Subjective Well-being Score | Altruism and happiness. (Positive Correlation) |
| 52 | Number of Public Libraries | Literacy Rate (%) | Community resources and education. (Positive Correlation) |
| 53 | Time Spent on Exercise (Hours/Week) | $\text{BMI}$ (Body Mass Index) | Fitness and health outcomes. (Negative Correlation) |
| 54 | Media Consumption (Hours/Day) | Trust in Government Index | Analyze public opinion formation. |
| 55 | Birth Rate (per 1000) | Infant Mortality Rate (per 1000) | Development health indicators. |
| 56 | Personal Savings Rate (%) | Consumer Confidence Index | Economic sentiment. |
| 57 | Distance from School (km) | Student Attendance Rate (%) | Logistics of schooling. (Negative Correlation) |
| 58 | Political Campaign Spending ($) | Election Vote Share (%) | Political strategy analysis. |
| 59 | Average Daily Temperature ($\text{^{\circ}C}$) | City Park Visits (Count) | Weather impact on leisure. |
| 60 | Number of Traffic Tickets Issued | Average Driving Speed (kph) | Law enforcement impact. |
IV. Entertainment, Media & Sports (61-80)
| Idea No. | X-Axis (Independent Variable) | Y-Axis (Dependent Variable) | Purpose / Correlation |
| 61 | Movie Budget ($) | Global Box Office Revenue ($) | Predict film success. (Positive Correlation) |
| 62 | Video Game Playtime (Hours) | Player Skill Rating (ELO/Rank) | Learning curve visualization. (Positive Correlation) |
| 63 | Album Length (Minutes) | Album Sales (Units) | Find optimal music packaging. |
| 64 | TV Show Episode Run Time (Min) | Viewer Drop-off Rate (%) | Audience attention span analysis. (Positive Correlation) |
| 65 | Pitch Speed (mph) | Batter Home Run Rate (%) | Baseball performance metrics. |
| 66 | Song Danceability Score (Spotify) | User Shares (Count) | Music virality drivers. |
| 67 | Number of Special Effects Shots | Film Critic Score (1-100) | Budget vs. quality debate. (Weak/No Correlation) |
| 68 | Athlete Age (Years) | Game Winning Percentage (%) | Track career peak performance. |
| 69 | Instagram Followers (Count) | Average Post Engagement Rate (%) | Influencer marketing analysis. |
| 70 | Comic Book Issue Price ($) | Collectible Grade Score | Hobby market value. |
| 71 | Minutes Spent Watching Ads | Subscription Retention Rate (%) | Monetization impact. (Negative Correlation) |
| 72 | Number of Team Practices (Hours) | End-of-Season Rank | Sports team effectiveness. (Positive Correlation) |
| 73 | Book Word Count | Average Reader Rating (Stars) | Length vs. enjoyment. |
| 74 | YouTube Video Length (Min) | Average View Duration (Min) | Viewer retention analysis. |
| 75 | Number of Players (Multiplayer Game) | Server Latency (ms) | Network performance testing. (Positive Correlation) |
| 76 | Restaurant Price Range ($) | Yelp Review Score (Stars) | Value perception. |
| 77 | Daily $\text{Chess}$ Puzzles Solved | $\text{Chess}$ Rating (ELO) | Skill improvement tracking. (Positive Correlation) |
| 78 | Song Tempo (BPM) | User-Reported Energy Level (1-10) | Emotional response to music. |
| 79 | Number of Unique Ingredients | Recipe Difficulty Score (1-10) | Cooking complexity measurement. (Positive Correlation) |
| 80 | Game Console Power (TFLOPS) | Game Frame Rate (FPS) | Hardware performance testing. (Positive Correlation) |
V. Personal Health & Wellness (81-100)
| Idea No. | X-Axis (Independent Variable) | Y-Axis (Dependent Variable) | Purpose / Correlation |
| 81 | Hours Slept Last Night | Self-Reported Productivity Score (1-10) | Analyze sleep impact. (Positive Correlation) |
| 82 | Steps Walked (Thousands) | Daily Calorie Intake (kCal) | Monitor activity vs. consumption. (Weak/No Correlation) |
| 83 | Minutes of Meditation | Heart Rate Variability ($\text{HRV}$) | Study relaxation techniques. (Positive Correlation) |
| 84 | Caffeine Intake (mg) | Sleep Latency (Minutes to fall asleep) | Assess stimulant effect. (Positive Correlation) |
| 85 | Water Intake (Liters) | Reported Headache Frequency (Days/Month) | Hydration link. (Negative Correlation) |
| 86 | Body Temperature ($\text{^{\circ}C}$) | White Blood Cell Count | Immune system tracking. (Weak/No Correlation) |
| 87 | Exposure to Sunlight (Min) | Vitamin D Levels (ng/mL) | Natural vitamin synthesis. (Positive Correlation) |
| 88 | Blood Sugar Level (mg/dL) | Time Since Last Meal (Hours) | Diabetes/diet monitoring. (Negative Correlation) |
| 89 | Weight Lifted (kg) | Muscle Mass Change (%) | Strength training progress. (Positive Correlation) |
| 90 | Screen Time (Hours) | Eye Strain Score (1-10) | Digital health impact. (Positive Correlation) |
| 91 | Amount of Fiber Eaten (g) | Digestive Health Score (1-10) | Diet analysis. (Positive Correlation) |
| 92 | Number of Social Interactions | Loneliness Score (1-10) | Mental health factors. (Negative Correlation) |
| 93 | Time Spent Outdoors (Hours/Week) | Anxiety Level (Score 1-10) | Nature exposure benefit. (Negative Correlation) |
| 94 | $\text{Alcohol}$ Consumption (Units/Week) | Liver Enzyme Levels (ALT/AST) | Monitor health risk. (Positive Correlation) |
| 95 | Noise Exposure (dB) | Hearing Test Score | Long-term hearing health. (Negative Correlation) |
| 96 | Systolic Blood Pressure | Diastolic Blood Pressure | Check for healthy range clustering. (Positive Correlation) |
| 97 | Minutes of Cardiovascular Exercise | Resting Heart Rate (BPM) | Fitness improvement. (Negative Correlation) |
| 98 | Daily Protein Intake (g) | Recovery Score (1-10) | Nutrition and repair. (Positive Correlation) |
| 99 | Time Spent Sitting (Hours) | Back Pain Severity (Score 1-10) | Ergonomics and posture. (Positive Correlation) |
| 100 | Days on a New Diet | Weight Change (kg) | Track diet effectiveness. |
This is a great starting point for building a highly engaging and educational scatter plot app! You could allow users to upload their own bivariate data, select one of these ideas to load a mock dataset, or even enable users to color-code points (creating a bubble chart) using a third categorical variable (like "Region," "Smoker Status," or "Product Category").
You may find this video on how to interpret different scatter plots useful: Scatter Plot - Math Steps, Examples & Questions.
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