Understanding the Calculation of Hospital Emergency Visits A ∩ B and A U B

  • Thread starter robax25
  • Start date
In summary, there is a discrepancy in the calculation of A U B and A ∩ B, with 242 mistakenly omitted and 953 being the total number of LWBS.
  • #1
robax25
238
3
Homework Statement
A ∩ B and A U B
Relevant Equations
The question is taken from a Book. I don't understand how A ∩ B and AUB is calculated?
A ∩ B and A U B
Untitled1001.png
Untitled100.png
 
Last edited by a moderator:
Physics news on Phys.org
  • #2
robax25 said:
I don't understand how A ∩ B and AUB is calculated?
The text in the first image describes the events A and B. In words, what does the event A ∩ B mean? What does the event A U B mean?

Per the forum rules, you must show some effort. I've cut you some slack here by not issuing a warning.
 
  • #3
If I calculate A u B = 5292 + 270 + 246 but there is 242 as well. why is not 242 added? The second question is that A ∩ B = 5292 +953 - 195 but why does he add 953 to the equation?
 
  • #4
robax25 said:
If I calculate A u B = 5292 + 270 + 246 but there is 242 as well. why is not 242 added? The second question is that A ∩ B = 5292 +953 - 195 but why does he add 953 to the equation?
The ##242## should be added. It looks like a typo.

##953## is the total number of LWBS, which is set ##B##.
 
  • Like
Likes FactChecker
  • #5
robax25 said:
The second question is that A ∩ B = 5292 +953 - 195 but why does he add 953 to the equation?
This is misreading their answer. They are saying that the count of ##A \cup B ## is 5292+953-195, not ##A \cap B##.
 
  • Like
Likes PeroK
  • #6
robax25 said:
If I calculate A u B = 5292 + 270 + 246 but there is 242 as well. why is not 242 added? The second question is that A ∩ B = 5292 +953 - 195 but why does he add 953 to the equation?
I agree with @PeroK .

5292 + 270 + 246 = 5808 , but Book has the result being 6050 .

Looking further, 6050 − 5808 = 242 .

So, clearly the 242 was omitted mistakenly.
 
  • Like
Likes FactChecker

FAQ: Understanding the Calculation of Hospital Emergency Visits A ∩ B and A U B

What is considered a hospital emergency visit?

A hospital emergency visit is when a patient goes to the emergency department of a hospital seeking immediate medical attention for a sudden and serious illness or injury. This can include conditions such as heart attacks, strokes, severe bleeding, or major trauma.

How long does a hospital emergency visit typically last?

The length of a hospital emergency visit can vary depending on the severity of the patient's condition and the availability of medical staff and resources. On average, a visit can last anywhere from 2-4 hours, but in some cases, it can take longer if the patient requires extensive treatment or needs to be admitted to the hospital.

What should I bring with me to a hospital emergency visit?

It is important to bring your identification, insurance information, and a list of any medications you are currently taking. If possible, also bring a list of any known allergies and a brief medical history. It can also be helpful to have a family member or friend accompany you to provide support and assist with any necessary paperwork.

Will I have to pay for a hospital emergency visit?

In most cases, yes, you will be responsible for paying for a hospital emergency visit. However, if you have health insurance, your insurance provider may cover a portion of the cost. It is important to check with your insurance provider to understand your coverage and any potential out-of-pocket expenses.

Can I choose which hospital to go to for an emergency visit?

In most cases, yes, you can choose which hospital to go to for an emergency visit. However, if you are experiencing a life-threatening emergency, it is important to go to the nearest hospital for immediate medical attention. If your condition is less severe, you may have the option to go to a specific hospital of your choice, but it is important to check with your insurance provider to ensure coverage for that specific hospital.

Back
Top