1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
chubhunter [2.5K]
3 years ago
11

A important study in the history of case-control methods was completed in 1950 by Doll & Hill. This study found that 647 of

the 649 lung cancer cases were smokers. In contrast, 622 of 649 controls smoked.
Mathematics
1 answer:
Sladkaya [172]3 years ago
3 0

Answer:

Evidence of an increased risk of lung cancer associated with cigarette smoking was sought by Doll and Hill. In one study, 649 lung cancer cases were matched by age, and gender to 649 controls; 647 of the cases and 622 of the control had a history of smoking cigarettes.a.Name the type of study. Case control studyb.Create the appropriate 2X2 table for the study. (2 points)Lung CancerControlsSmokers647622Nonsmokers227Total649649c.Calculate the appropriate measure of association for the study. (4 points)The odds ratio: Cases = 647 / 2 = 323.5The odds ratio: Control = 622 / 27 = 23.03The odds ratio = 23.03 / 323.5 = 14.04 d.Interpret the results. (2 points)Smokers are 14 times more likely to develop lung cancer than non-smokers.

Step-by-step explanation:

You might be interested in
How do I set up this equation and solve ?
vovangra [49]

angles in a triangle need to equal 180 degrees

 so x = 180 - 47 - 58

x = 180-105

 x= 75 degrees

4 0
3 years ago
Which inequality best represents the following situation: The speed limit in your neighborhood is 30 miles an hour and you are n
andreev551 [17]

Answer:

D

Step-by-step explanation:

You can drive anywhere less than or equal to 30 mph, and it'd be legal

5 0
3 years ago
Tim plans to spend 40 hours on exercise training to earn a private trainer license. He has saved $2,000
grigory [225]

Answer:

round it then divide it by 5

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Kim makes spiced tea from her mother's recipe. The recipe calls for 2 %
Anna11 [10]

im sorry but i dont know

3 0
3 years ago
PLEASE HELP If P(A)=0.2 and P(A and B)=0.12, and P(A or B)=0.68, what is P(B)?
ruslelena [56]

Answer:

YOU ADD UP ALL THE DECIMALS

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • The box plot below shows attendance at a local movie theater and high school basketball games: which of the following best descr
    12·1 answer
  • Help me with this problem and show work please
    13·1 answer
  • Which expression is equivalent to (3x + 2)(2x – 8)?
    8·2 answers
  • Find the simple interest when the principal is $2150 with a 6.5% interest rate for 5 years
    14·2 answers
  • Tra total bill is $20.00 the cost of his drink is 15% of the total bill an the rest is the cost his food. What percent of the to
    13·2 answers
  • Brayden is selling lemonade in glasses that hold 1/12 of a gallon. If he makes 2 7/8 gallons of lemonade, which expression shows
    15·1 answer
  • A side of the triangle below has been extended to form an exterior angle of 72°. Find the value of xx
    9·2 answers
  • Last year, Jay was 96 inches tall. This year, he is 108 inches tall. What is the percent increase in Jay’s height
    15·1 answer
  • What is this number in standard form? seventy-one and ninety-two thousandths
    6·2 answers
  • Determine the relative order of the metric prefixes of kilo-, micro-, centi-, and milli-.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!