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ezinis
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In a certain class, one student is to be selected at random 17 Nov 2009, 10:20
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In a certain class, one student is to be selected at
random to read. What is the probability that a boy
will read?
(1) Two-thirds of the students in the class are boys.
(2) Ten of the students in the class are girls.

Should the question be worded: "What is the probability that a boy will be selected to read" ?

IMO, there is a chance that a boy is selected and will not read.
Am I crazy?



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lagomez
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In a certain class, one student is to be selected at random 17 Nov 2009, 10:28
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ezinis
In a certain class, one student is to be selected at
random to read. What is the probability that a boy
will read?
(1) Two-thirds of the students in the class are boys.
(2) Ten of the students in the class are girls.

Should the question be worded: "What is the probability that a boy will be selected to read" ?

IMO, there is a chance that a boy is selected and will not read.
Am I crazy?
Show more

It's assuming that whoever is selected will read, boy or girl. I don't think it's implying that someone can be selected an not read.

Of course, I might be the crazy one.
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ezinis
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In a certain class, one student is to be selected at random 17 Nov 2009, 11:00
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so now we are talking about implications, assumptions, ...:) i am just being sarcastic ...
Anyway, I think the question should always be 100% clear.
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srini123
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In a certain class, one student is to be selected at random 17 Nov 2009, 12:38
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In a certain class, one student is to be selected at
random to read. What is the probability that a boy
will read?
(1) Two-thirds of the students in the class are boys.
(2) Ten of the students in the class are girls.

IMO, there is a chance that a boy is selected and will not read.
Am I crazy?

I think there is some minute level of "lack of clarity" in the question.But almost everyone will understand the question.Since the question doesn't mention that the selected student may or may not read.
We can think of many options such as
1) will the boy read?
2) an earthquake hits the school area when the boy just starts to read
3) the selected boy reads but reads it all incorrectly, can it be counted as read ?

etc., LOL

Pun intended, take this note lightly ... release some neurons in the brain that are stuck to quant/verbal areas.. :) LOL
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ezinis
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In a certain class, one student is to be selected at random 17 Nov 2009, 14:37
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To be fair, you can easily argue the question like that misleads people i.e. if the boy is a kindergarten class, there is a high chance he does not know how to read...

A lot of times I answered the questions incorrectly because I made assumptions... so then I have to read the questions carefully and sometimes, I admit, I get a bit too anal about wording.



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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Data Sufficiency (DS) Forum
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