Answer:
If a person is randomly selected from this group, the probability that they have both high blood pressure and high cholesterol is P=0.25.
Step-by-step explanation:
We can calculate the number of people from the sample that has both high blood pressure (HBP) and high cholesterol (HC) using this identity:
![N(\text{HBP or HC})=N(\text{HBP})+N(\text{HC})-N(\text{HBP and HC})\\\\\\ N(\text{HBP and HC})=N(\text{HBP})+N(\text{HC})-N(\text{HBP or HC})\\\\\\ N(\text{HBP and HC})=15+25-30=10](https://tex.z-dn.net/?f=N%28%5Ctext%7BHBP%20or%20HC%7D%29%3DN%28%5Ctext%7BHBP%7D%29%2BN%28%5Ctext%7BHC%7D%29-N%28%5Ctext%7BHBP%20and%20HC%7D%29%5C%5C%5C%5C%5C%5C%20N%28%5Ctext%7BHBP%20and%20HC%7D%29%3DN%28%5Ctext%7BHBP%7D%29%2BN%28%5Ctext%7BHC%7D%29-N%28%5Ctext%7BHBP%20or%20HC%7D%29%5C%5C%5C%5C%5C%5C%20N%28%5Ctext%7BHBP%20and%20HC%7D%29%3D15%2B25-30%3D10)
We can calculate the probability that a random person has both high blood pressure and high cholesterol as:
![P(\text{HBP and HC})=\dfrac{10}{40}=0.25](https://tex.z-dn.net/?f=P%28%5Ctext%7BHBP%20and%20HC%7D%29%3D%5Cdfrac%7B10%7D%7B40%7D%3D0.25)
Answer: if I’m correct the answer is $0.38
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Answer:
A. 220 miles
Step-by-step explanation:
You can multiply to find the answer. 5.5 times 40 = 220 miles.