Maths-
SAT
Easy
Question
The scatterplot above shows data collected on the lengths and widths of Iris setosa petals. A line of best fit for the data is also shown. Based on the line of best fit, if the width of an Iris setosa petal is 19 millimeters, what is the predicted length, in millimeters, of the petal?
- 21.10
- 31.73
- 52.83
- 55.27
The correct answer is: 52.83
The equation of the line of best fit is given as:
y = 1.67x + 21.1
x = 19 millimeters
y = 1.67 (19) + 21.1
= 31.73 + 21.1
= 52 .83
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18 |
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Age |
Frequency |
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