Bunuel wrote:
Over the last thirty years, the growth of the number of arthritis sufferers in Country P has been slightly greater than the growth of country's population overall. However, a health clinic claims that the number of people suffering from some forms of arthritis has not increased. As evidence, the health clinic noted that people who suffer from rheumatoid arthritis now represent only 1 percent of the population, while thirty years ago rheumatoid arthritis sufferers represented almost 1.2 percent of the population.
Which of the following statements, if true, weakens the conclusion drawn by the health clinic?
(A) The number of people suffering from a form of arthritis other than rheumatoid arthritis has increased over the last fifty years.
(B) Over 80 percent of adults with rheumatoid arthritis contain an antibody called rheumatoid factor in the bloodstream.
(C) The prevalence of rheumatoid arthritis is much higher in the native population of Country P than it is among immigrants to Country P from other countries.
(D) Population growth in Country P has been such that 1 percent of the current population represents more people than 1.2 percent of the population did thirty years ago.
(E) The number of women suffering from rheumatoid arthritis is more than double the number of men suffering from it.
Project CR Butler: Critical Reasoning
For all CR butler Questions Click HereLooks like Data Inference question.
(A) The number of people suffering from a form of arthritis other than rheumatoid arthritis has increased over the last fifty years.
The increase might have happened in the first 20 years and later i.e last 30 years the number actually might not have increased. Since the data presented is of 50 years.(B) Over 80 percent of adults with rheumatoid arthritis contain an antibody called rheumatoid factor in the bloodstream.
How this is relevant to the reasoning.?(C) The prevalence of rheumatoid arthritis is much higher in the native population of Country P than it is among immigrants to Country P from other countries.
Native or immigrant they still constitute part of the population(D) Population growth in Country P has been such that 1 percent of the current population represents more people than 1.2 percent of the population did thirty years ago.
That's why data inferences are sometimes tricky. If this turns out to be true then the number of people suffering from arthritis now is more than the number 30 years ago.(E) The number of women suffering from rheumatoid arthritis is more than double the number of men suffering from it.
Data regarding proportion of population is not given so we can not come to a solid conclusion. _________________
-Irony of today’s world, Lie is a Truth to represent the Reality.