Maurice Tutor

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Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 13 Jan 2018 My Price 5.00

post-scondary institution

70% of the student body of a very large post-scondary institution is female. In a random sample of 12 students, what is the probability that: a) at most half will be females b) more than 7 will be females c) fewer than 3 will be males I used the Table of Binomial Probabilities: X P(x) X P(x) 0 .0000 7 .1585 1 .0000 8 .2311 2 .0002 9 .2397 3 .0015 10 .1678 4 .0078 11 .0712 5 .0291 12 .0138 6 .0792 (A) P(at most 1/2 female)= P(0 or 1 or 2 or 3 or 4 or 5 or 6) P(x=0)+ P(x=1)+ P(x=2)+ P(x=3)+ P(x=4)+ P(x=5)+ P(x=6) = .0000+.0000+.0002+.0015+.0078+.0291+.0792= .1178 is this right? (B) P(more than 7 will be female)= P(8 or 9 or 10 or 11 or 12) P(x=8)+ P(x=9)+ P(x=10)+ P(x=11)+ P(x=12)= .2311+.2397+.1678+.0712+.0138= .7236 is this right? (C) I don't know how to do this one :(

 


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Maurice Tutor
(5)
Status NEW Posted 13 Jan 2018 07:01 PM My Price 5.00

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