A company has three machines A, B and C which all produce the same two parts, X and
Y. of all the parts produced, machine A produces 60%, machine B produces 30%, and
machine C produces the rest. 40% of the parts made by machine A are part X, 50% of the
parts made by machine B are part X, and 70% of the parts made by machine C are part X.
A part produced by this company is randomly sampled and is determined to be an X part.
With the knowledge that it is an X part, find the probabilities that the part came from
machine A, B or C.

1. 👍 0
2. 👎 0
3. 👁 266
1. A company has three machines A, B and C which all produce the same two parts, X and
Y. of all the parts produced, machine A produces 60%, machine B produces 30%, and
machine C produces the rest. 40% of the parts made by machine A are part X, 50% of the
parts made by machine B are part X, and 70% of the parts made by machine C are part X.
A part produced by this company is randomly sampled and is determined to be an X part.
With the knowledge that it is an X part, find the probabilities that the part came from
machine A, B or C.

1. 👍 0
2. 👎 0
posted by Tofik
2. Blue Nile University recently conducted a survey of undergraduate students in order to
gather information about the usage of the library. The population for this study included
all 4000 undergraduate students enrolled in the university. The library officers are
interested in increasing usage, particularly among females (F) and seniors (S) at the
university. Of the 4000 students, 800 students are seniors, 1800 students are females and
450 of the 1800 females are seniors.
2 | P a g e L e a d s t a r C o l l e g e o f M a n a g e m e n t a n d L e a d e r s h i p
Required:
 What is the probability that a student selected at random is a senior given that the
selected student is female?
 What is the probability that a student selected at random is female given that the
selected student is senior?

1. 👍 0
2. 👎 0
posted by Tofik
3. Blue Nile University recently conducted a survey of undergraduate students in order to
gather information about the usage of the library. The population for this study included
all 4000 undergraduate students enrolled in the university. The library officers are
interested in increasing usage, particularly among females (F) and seniors (S) at the
university. Of the 4000 students, 800 students are seniors, 1800 students are females and
450 of the 1800 females are seniors.
2 | P a g e L e a d s t a r C o l l e g e o f M a n a g e m e n t a n d L e a d e r s h i p
Required:
 What is the probability that a student selected at random is a senior given that the
selected student is female?
 What is the probability that a student selected at random is female given that the
selected student is senior?

1. 👍 0
2. 👎 0
posted by Tofik
4. hggggggggggggggggggggggggggggggggggggggjftrhjyhfygh

1. 👍 0
2. 👎 0
posted by molla

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