Suppose that the lüs of university A\'s students can be desenbed by a normal rmo

Question

Suppose that the lüs of university A's students can be desenbed by a normal rmodel with mean 140 and standard deviation 7 from university B can be described by a normal model with mean 110 and standard desiation 9 points Also suppose that lo's of students a) Select a student at random from unirersity A Find the probability that the student's lO is at leasl 130 ponts The probability is 923 itl Round to three decimal places as needed) b) Select a student at random from each school Find the probability that the university A students 10 it! at least 10 points higher than the universty 8 student's i0 The probability is[002] ur Round to three decimal places as needed.) c) Select 3 university B students at randorn Find the probability that this group's awerage 1Q is at least 115 points he The probability is (Round to three decimal places as needed ) ) Also select 3 university A students at random Whar's the probablity hat their awerage Io s at leastnshrtn the werage fer the3 ersty el students? wit sd The probability its niv ritle the l I wit l witl ndom trom university A Fina tne

Explanation / Answer

Suppose that the lüs of university A's students can be desenbed by a normal rmodel with mean 140 and standard deviation 7 from university B can be described by a normal model with mean 110 and standard desiation 9 points Also suppose that lo's of students a) Select a student at random from unirersity A Find the probability that the student's lO is at leasl 130 ponts The probability is 923 itl Round to three decimal places as needed) b) Select a student at random from each school Find the probability that the university A students 10 it! at least 10 points higher than the universty 8 student's i0 The probability is[002] ur Round to three decimal places as needed.) c) Select 3 university B students at randorn Find the probability that this group's awerage 1Q is at least 115 points he The probability is (Round to three decimal places as needed ) ) Also select 3 university A students at random Whar's the probablity hat their awerage Io s at leastnshrtn the werage fer the3 ersty el students? wit sd The probability its niv ritle the l I wit l witl ndom trom university A Fina tne

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