The probability that a person in the United States has type B+ blood is 13%.
1 answer:
Answer:
Step-by-step explanation:
Given that the probability that a person in the United States has type B+ blood is 13%.
Since four unrelated people in the United States are selected at random, we can say that each person is independent of the other to have B+ blood group.
Let X be the number of persons who have blood group B+ in the group of 4 persons.
X is Binomial with p = 0.13
a) P(X = 4) =
b) P(x =0) =
c)
d) All having B+ is unusual since probability is very negligible
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Considering the given linear function, the inequality graphed is:
B. .
A linear function is modeled by:
y = mx + b
In which:
- m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.
The line intersects the y-axis at 2 units, hence the y-intercept is b = 2. The function also passes through (1,4), hence the slope is:
m = (4 - 2)/(2 - 1) = 2.
Thus the equation of the line is:
y = 2x + 2.
The left-side of the line is the values above the line, hence the inequality is:
B. .
More can be learned about linear functions at brainly.com/question/24808124
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