Doctorate children

[raffamaiden]

Choi: All other factors being equal, children whose parents earned doctorates are more likely to earn a doctorate than children whose parents did not earn doctorates.

Hart: But consider this: over 70 percent of all doctorate holders do not have a parent who also holds a doctorate

Which of the following is the most accurate evaluation of Hart's reply?

(A) It establishes that Choi's claim is an exaggeration
(B) If true, it effectively demonstrates that Choi's claim cannot be accurate
(C) It is consistent with Choi's claim
(D) It provides alternative reasons for accepting Choi's claim
(E) It mistakes what is necessary for an event with what is sufficient to determine that the event will occur

[raffamaiden]

the english corner? XD ok

[gio73]

Hi raffa
Do you wanto to know the exact answer?

[raffamaiden]

no, i know it it was in my book and asnwers where provided. i want you to try

[gio73]

I'd answer E (by exclusion...)

[raffamaiden]

Nope, sorry

[vict85]

I think the answer is C: the number of people who have parents who hold a doctorate is much smaller than the 30%. So, he actually says the exact same thing. I don't think the answer is D because it is not an alternative proof.

[gio73]

Nope, sorry

Damn it
My problem isn't English
I can't understand why Vict85 said C, the sentence begins whit "but" so I think Hart doesn't agree with Choi

[raffamaiden]

I think the answer is C: the number of people who have parents who hold a doctorate is much smaller than the 30%. So, he actually says the exact same thing.

Where did you get an information about "the number of people"?
Hart says that "over 70 percent of all doctorate holders do not have a parent who also holds a doctorate".
Let's say that 99% of all doctorate holders DO NOT have a parent who also holds a doctorate, which is consistent with Hart. This means that 1% of all doctorate holders have a parent who also holds a doctorate. Which is consistent with your hypothesis. You said that Choid and Hart are saying the same thing. How do you deduce Choi's statement from the phrase above?

the sentence begins whit "but" so I think Hart doesn't agree with Choi

The "but" may or may not indicate a Hart disagreement, but the answer choices do not ask at all if Hart agrees or disagrees with Choi. Some of them ask if the two sentences agree with each other or not, from a logical point of view.

[vict85]

Oh, you are right. He said "over".So, his sentence is neither consistent nor contrary to the Choi one. He simply said that a doctorate holder without parents who hold a doctorate is far from being a rare event. It remains only A, but I'm not sure it is correct to say that he established something.