the blood types of 600 people are collected at a doctors office. The table shows the breakdown of patients per blood type. If a
person from this group is selected at random, what is the probability that this person has type A blood? Express your answer as a fraction in lowest terms or a Decimal terms or a decimal rounded to the nearest millionth??
1 answer:
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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