Transcript history of personal computer

Complements and Unions of Events
and
Conditional Probability and
Intersections
If o(E) = 1:6, then find o(E’ ).
Alex is taking two courses, algebra and U.
S. history. Student records indicate that
the probability of passing algebra is .35,
that of failing U. S. history is .35, and that
of passing at least one of the two courses
is .80. Find the probability that
• Alex will pass history
• Alex will pass both courses
Alex is taking two courses, algebra and U.
S. history. Student records indicate that
the probability of passing algebra is .35,
that of failing U. S. history is .35, and that
of passing at least one of the two courses
is .80. Find the probability that
• Alex will fail both courses
• Alex will pass exactly one course
A personal computer manufacturer buys
38% of its chips from Japan and the rest
from America. 1.7% of the Japanese chips
are defective, and 1.1% of the American
chips are defective.
•
Find the probability that a chip is defective and made
in Japan.
•
Find the probability that a chip is defective and made
in America.
•
Find the probability that a chip is defective.
•
Find the probability that a chip is defect-free.