MHB How Does Cigarette Consumption Relate to Heart Disease Deaths?

AI Thread Summary
Cigarette consumption is analyzed in relation to coronary heart disease deaths across various countries, with the United States leading in per capita consumption at 3,350 cigarettes. The coefficient of determination calculated at 0.607 suggests a moderate positive correlation between cigarette consumption and heart disease mortality rates. A prediction model using the linear equation ax + b is proposed to estimate deaths per 100,000 for a country with a per capita consumption of 2,000 cigarettes. The discussion highlights the importance of statistical analysis in understanding health risks associated with smoking. Overall, the data indicates a significant relationship between cigarette use and heart disease fatalities.
aprilryan
Messages
20
Reaction score
0
I just need a little assistance on the last two questions. I place per capita and death in L1 and L2 but I am lost.

Country Per Capita Cigarette Consumption
3900
United States 3350
Canada 3220
Australia 3220
New Zealand 2790
United Kingdom 2770
Ireland 2290
Finland 2160
West Germany 1890
Netherlands 1810
Austria 1770
Belgium 1700
Mexico 1680
Italy 1510
Sweden 1270
Spain 1200
Norway 1090

Deaths from Coronary Heart Disease (per 100,000)
259.9
211.6
238.1
211.6
238.1
211.8
194.1
187.3
110.5
233.1
150.3
124.7
182.1
118.1
31.9
114.3
126.9
43.9
136.3

3. What does the coefficient of determination indicate about the relationship?
Would the coefficient of 0.607 indicate there's a link between the variables?4. Use the data above to predict the number of death (per 100,000) in a country with a per capita consumption of cigarettes of 2000.

Would the ax+b equation be useful here?

Sorry, I know this one is a little long.
 
Mathematics news on Phys.org
Nevermind I got i!
 
aprilryan said:
Nevermind I got i!

Would you mind posting your solution for the benefit of the community?
 
Sure! I got 0.607.
 

Thread 'Non-orthogonal bases'

Suppose ,instead of the usual x,y coordinate system with an I basis vector along the x -axis and a corresponding j basis vector along the y-axis we instead have a different pair of basis vectors ,call them e and f along their respective axes. I have seen that this is an important subject in maths My question is what physical applications does such a model apply to? I am asking here because I have devoted quite a lot of time in the past to understanding convectors and the dual...
View full post »

Thread 'What Exactly is Dirac’s Delta Function? - Insight'

Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. In Dirac’s Principles of Quantum Mechanics published in 1930 he introduced a “convenient notation” he referred to as a “delta function” which he treated as a continuum analog to the discrete Kronecker delta. The Kronecker delta is simply the indexed components of the identity operator in matrix algebra Source: https://www.physicsforums.com/insights/what-exactly-is-diracs-delta-function/ by...
View full post »

Hot Threads

Recent Insights

Back
Top