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8. Your maximum heart rate depends on your age. These data were collected from a sports journal: Age (years), x 20 25 30 Maximum heart
8. Your maximum heart rate depends on your age. These data were collected from a sports journal:
Age (years), x | 20 | 25 | 30 |
Maximum heart rate (beats/min), y | 206 | 200 | 194 |
a) Draw a scatter plot of the data. Find the equation of the line of best fit. (3 marks)
b) Determine the correlation coefficient. How well does the line fit the data? (3 marks)
c) Use the equation to give a prediction of the maximum heart rate for a person of 23 years? (1 mark)
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