Answer:
a) P=0.2
b) P=0.1
Step-by-step explanation:
We have a total of 1,000 employees in the company.
Out of this 1,000 employees, 200 had colds. If this proportion allow us to estimate the probability of next year colds, we have:

If we take only the ones that are involved in excercise programs, we have 50 cases of cold out of 500 employees (half of the total employees).
The probabillity of cold for them is then:
Answer: A. Yes
Step-by-step explanation: It is a solution to the system.
Answer:
<em>y = 3x</em>
Step-by-step explanation:
<u>Equation of a Line</u>
Suppose we know the line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:

The point-slope form of the equation of a line is:
y - k = m ( x - h )
Where m is the slope and (h,k) is a point through which the line passes.
We are given the following values of the function: f(-1)=-3 and f(2)=6. The points are (-1,-3) and (2,6). The slope is:

Now find the equation of the line using the second point:
y - 6 = 3 ( x - 2 )
Operating:
y - 6 = 3x - 6
Simplifying:
y = 3x
A, B, C, and D are all correct in this situation.
Answer:
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Step-by-step explanation: