# Statistics

The table below shows the smoking habits of a group of asthma sufferers

NS OS RS HS T
M 358 32 90 48 528
W 307 35 77 44 463
T 665 67 167 92 991

If one of the 991 people is randomly selected, find the probability that the person is a man or a heavy smpker

1. If I am interpreting you table correctly, the probability of being a man (M) is 528/991 (total men dividing by the grand total) and the probability of being a heavy smoker (HS) is total HS divided by the grand total. The probability of either one event or another occurring is found by adding the probability of the individual events.

I hope this helps. Thanks for asking.

posted by PsyDAG

First Name

## Similar Questions

1. ### math

Choose the one alternative that best completes the statement or answers the question. Find the probability. The table describes the smoking habits of a group of asthma sufferers. |Non|Light|Heavy|Total Men| 311| 82 | 74 |467
2. ### Statistics

1. In a study of heart disease in male federal employees, researchers classified 170 volunteer subjects according to their socioeconomic status (SES) and their smoking habits. SES categorized as high and low. Individuals were
3. ### Statistics

Smoking habit Socioeconomic status High Low Smoking 15 40 55 Not smoking 25 10 35 Total 40 50 N=90 a. For these ordinal variables, which hypothesis testing is appropriate to test the relationship between SES and smoking habits
4. ### health

All of the following are true regarding smoking EXCEPT: - Smoking inhibits the T cells from working properly in the lungs - Smoking is viewed by many today as being socially unacceptable - Research shows that the nicotine patch is
5. ### Science....HURRY! Please respond ASAP!!!!

0=X=0 The model above shows how an unidentified element, X, forms covalent bonds with oxygen. In which group on the periodic table does Element X most likely belong? A. Group 6 B. Group 12 C. Group 14 D. Group 18 I think it is
6. ### statistics

Question: The table below shows the drinking habits of adult men and women. Men Women Total Non-Drinker 387 421 808 Occasional Drinker 45 46 91 Regular Drinker 90 69 159 Heavy Drinker 37 34 71 Total 559 570 1129 If one of the
7. ### epidemiology

In another study, the smoking habits of 34,445 male physicians were obtained by mailed questionnaires. Deaths among these physicians over the subsequent years were identified though contact with the office of the Registrar
8. ### statistics

Is this a descriptive study or an inferential study. I say descriptive...... The table below shows the average income by age group for residents of a small mid-western town in 2001 based on a sample of 200 individuals from each
9. ### statistics

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
10. ### statistics

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

More Similar Questions