Example 2: Example 3: A teacher records the number of days of school a student has missed and their The table shows the sales of coffee and daily temperature outside: overall mark in the course: Temp...

Extracted text: Example 2: Example 3: A teacher records the number of days of school a student has missed and their The table shows the sales of coffee and daily temperature outside: overall mark in the course: Temp 20 10 -10 -5 30 16 -12 Days 12 3 5 1 9 10 Missed #coffees 100 200 350 500 450 25 260 180 600 Mark (%) 95 53 75 76 86 62 55 79 80 1. Create a scatter plot on Desmos. 2. Determine the equation of the line of best fit. 1. Create a scatter plot on Desmos. 3. What does the slope tell you? 2. Determine the equation of the line of best fit. 4. What does the y-intercept tell you? 3. What does the slope tell you? 5. State the correlation coefficient. r = 4. What does the y-intercept tell you? 6. What does the r value tell you? 5. State the correlation coefficient. r= 7. Predict the number coffees sold if it is 3 degrees outside 6. What does the r value tell you? 8. Is that interpolation or extrapolation? 9. Predict the temperature outside if 800 coffees are sold? 7. Predict the mark of a student who has missed 18 days. 10. Is that interpolation or extrapolation? 8. Is #7 interpolation or extrapolation? 9. Predict the number of days a student has missed if their mark is 85% 10. Is #9 interpolation or extrapolation?