Question
What is a graph? Explain.
| Income of people per month $($in $Rs.)$ | Number of people earning the income $($Frequency$)$ |
| $10,000 – 20,000$ | $500$ |
| $20,000 – 30,000$ | $300$ |
| $50,000 – 1,00,000$ | $100$ |
| Price $($In $Rs.)$ | Demand $($in units Frequency$)$ |
| $1$ | $100$ |
| $2$ | $80$ |
| $5$ | $70$ |
| $7$ | $20$ |
| $10$ | $10$ |
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