On a scale 5 cm is 12 yards. If the length is 30 yards, how many cm is this on the scale?
1 answer:
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Answer:
B
Step-by-step explanation:
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Answer:
2.0
Step-by-step explanation:
x = age
y = average systolic blood pressure
x₁ = 40 years old, y₁ = 110 systolic blood pressure
x₂ = 50 years old, y₂ = 130 systolic blood pressure
∴ Slope of the regression line is 2.0