Why does Jane get full credit for her answer? (set notation)

[amandamunoz]

On a quiz, Jane answers "6 is an element of the set of integers", while John answers "{6} is an element of the set of integers". Jane receives full credit while John does not. Why?

My answer must be three sentences.
Thanks for any help I can get!!

 

[tkhunny]

You'll have to think up the three sentences, but the SET containing the integer 6 is NOT an integer.

 

[stapel]

On a quiz, Jane answers "6 is an element of the set of integers", while John answers "{6} is an element of the set of integers". Jane receives full credit while John does not. Why?

Hint: Review set notation! :wink:

Eliz.

 

[amandamunoz]

this is how I ended up answering it. i think i was completely off!

John did not receive full credit because he has the brackets around the
number 6. These brackets stand for a list of elements in a set. The
way John responded shows a list of numbers but because there is only
the number 6 as an element of the set of integers, the brackets are not
needed. They would only be needed if there were more than one
number to make a set.

Thanks for the help!

 

[stapel]

What do the brackets mean? What does "{6}" mean, and how does this differ from "6"?

It's not just a matter of "the brackets are extra and unnecessary"; the brackets indicate something very specific, which makes John's answer very specifically wrong.

Eliz.

 

[tkhunny]

Re: Why does Jane get full credit for her answer? (set notat

On a quiz, Jane answers "6 is an element of the set of integers", while John answers "{6} is an element of the set of integers". Jane receives full credit while John does not. Why?

My answer must be three sentences.
Thanks for any help I can get!!

Okay, three sentences.

John is wrong.
Jane is right.
A cow jumped over the moon.

I love meaningless questions. Why would you be required to use three sentences?

Try this one sentence. John's answer is a SET, not an INTEGER.