SOLUTION: In a class of 28, 4 out of 16 girls and 7 out of 12 boys wear contact lenses. A student is chosen randomly from the class.
(a) What is the probability that the chosen student is
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-> SOLUTION: In a class of 28, 4 out of 16 girls and 7 out of 12 boys wear contact lenses. A student is chosen randomly from the class.
(a) What is the probability that the chosen student is
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Question 361985: In a class of 28, 4 out of 16 girls and 7 out of 12 boys wear contact lenses. A student is chosen randomly from the class.
(a) What is the probability that the chosen student is not wearing contact lenses?
(b) What is the probability that the chosen student is a girl or someone who does not wear contact lenses?
(c) If the chosen student is wearing contact lenses, what is the probability that the chosen student is a boy?
(d) If G represents the event that the chosen student is a girl and C represents the event that the chosen student wears contact lenses, determine whether events G and C are independent.
You can put this solution on YOUR website! Make a table with Boys and Girls at the top and CLs and No CLs on the side and fill in the 4 boxes with the appropriate numbers for questions a) thru c).
a) 17/28
.
b) 21/28
.
c) 7/11
.
d) Event G and C are not independent because P(G|C)(.37) in not equal to P(G)(.59).
.
Ed
