# Probability.. HELP!

At a certain hospital, 40 patients have lung cancer, 30 patients smoke, and 25 have lung cancer and smoke. Suppose the hospital contains 200 patients. If a patient chosen at random is known to smoke, what is the probability of the event that the patient has lung cancer?

1. 👍 0
2. 👎 0
3. 👁 621
1. Pr(smoke, lc)=30/200* (25/40)

1. 👍 0
2. 👎 0
👨‍🏫
bobpursley

## Similar Questions

1. ### Health

1. Long-term risks of smoking include (choose 3) A) bad breath B) lung cancer** C) emphysema** D) cardiovascular disease**

2. ### macroeconomic

Secondhand smoke globally kills more than 600,000 people each year, accounting for 1 percent of all deaths worldwide, according to a new study. . . . Researchers estimated that annually secondhand smoke causes about 379,000 deaths

3. ### statistics

Suppose a new treatment for a certain disease is given to a sample of n=200 patients. The treatment was successful for 166 of the patients. Assume these patients are representative of the population of individuals who have this

4. ### epi

In a population-based cohort study, an entire community was interviewed regarding smoking habits and then followed for one year. All lung cancer deaths were ascertained and the following data were available: •Fifteen (15) lung

1. ### database management

2. Given the following business scenario, create a Crow’s Foot ERD using a specialization hierarchy if appropriate. Tiny Hospital keeps information on patients and hospital rooms. The system assigns each patient a patient ID

2. ### MATH

The Megabuck Hospital Corp. is to build a state-subsidized nursing home catering to homeless patients as well as high-income patients. State regulations require that every subsidized nursing home must house a minimum of 770

3. ### Epidemiology

Can someone please check this for me to see if I am on the right track thanks? In a population-based cohort study, an entire community was interviewed regarding smoking habits and then followed for one year. All lung cancer deaths

4. ### statistics

The experience of a certain hospital showed the the distribution of length stay of patients is normal with a mean of 11.5 days and a standard deviation of 2 days. a. What percentage of the patients stayed nine days or less? b.If a

1. ### Statistics

The following table shows a frequency distribution of patients with colon cancer treated at Community Hospital. Compute the proportion of patients in each category. Community Hospital Ages of Patients with Colon Cancer Annual

2. ### help scott biostats

The proportion of deaths due to lung cancer in males ages 15-64 in England and Wales during the period 1970-1972 was 12%. Suppose that of 20 deaths that occur among male workers in this age group who have worked for at least 1

3. ### health

People who smoke any kind of cigarette are at _________ of developing lung cancer than people who do not smoke.

4. ### Newspaper Article Review

What generalizations can you make from this article? Can you help me please????????????? 'It's a whole new day for lung transplantation' New nationwide system has saved lives of patients who are in sudden desperate need By DENISE