Goraksh wrote:

I guess answer is B

The argument states that 20% OF THOSE WHOSE PARENTS ARE PSYCHOLOGISTS chose careers in psychology

But what if only 30% OF THOSE WHOSE PARENTS ARE DOCTORS OR ENGINEERS chose that field

Then engineers or doctors will have more influence then psychologists

Option B makes sense

Sent from my Redmi 3S using

GMAT Club Forum mobile appReading your reasoning, I think you may misread the option (B).

b)The percentage of those interviewed whose parents were not psychologists In such a statistics-related question, I think a mathematical example might help you a lot in understanding properly.

Let's say, we survey 100 young adults in total.

Just imagine 40% have psychologists parents, so the number of these children is:

A=40% x 100 = 40Just call a the number of those whose parents were psychologists were pursuing careers in psychology themselves. From premise,

a/A = 20%Similarly, we will call

B, C, D... and

b, c, d... the number of ones whose parents are not psychologists (doctors, engineers, etc.) and number of ones pursuing their parents' career (doctors, engineers, etc.), respectively.

Considering the percentage a/A only, author concludes that "psychologists have more influence on their children's career choice than do members of other professions".

He must have assumed that there is no any b/B, c/C, or d/D, etc. that is larger than 20%.

Option (B) simply provides information about B, C and D, whereas what we actually need is b/B, c/C, or d/D. In other words, (B) doesn't help. OUT.

Option (C) talks about b/B, c/C, d/D hence is exactly what we need to evaluate the conclusion.