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 Post subject: I Need help with statistic and probability , simple questionPosted: Mon, 20 Feb 2012 20:28:39 UTC
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Joined: Mon, 20 Feb 2012 20:20:32 UTC
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An entering freshman class of 3250 students. they are required to take at least one of the two courses MATH1 and ENGLISH1. the number of students taking MATH1 is 1975 and the number taking English is 2350.

(a)how many students are taking both MATH1 and ENGLISH1?

(b)How many students are taking MATH1 but not ENGLISH1

i need help with (c) and (d)

(c) The number of students taking History1 is 2480 and number of students taking history and English is 1895. find how many students are taking at least one History1 and English1

(d) How many are not enrolled in History1? out of this student how many are not enrolled in English1?

Thank you.

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 Post subject: Re: I Need help with statistic and probability , simple quesPosted: Mon, 20 Feb 2012 21:02:46 UTC
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Joined: Wed, 30 Mar 2005 04:25:14 UTC
Posts: 12098
Location: Austin, TX
koricha25 wrote:
An entering freshman class of 3250 students. they are required to take at least one of the two courses MATH1 and ENGLISH1. the number of students taking MATH1 is 1975 and the number taking English is 2350.

(a)how many students are taking both MATH1 and ENGLISH1?

(b)How many students are taking MATH1 but not ENGLISH1

i need help with (c) and (d)

(c) The number of students taking History1 is 2480 and number of students taking history and English is 1895. find how many students are taking at least one History1 and English1

(d) How many are not enrolled in History1? out of this student how many are not enrolled in English1?

Thank you.

For (c) note that the overlap has to be at least as big as the sum less the total size of stuff.

For (d) remember that not enrolled is just total minus enrolled.

Edit (outermeasure): Fix quote.

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