only 30% of the time. A worker was taught the skill by one of the methods but failed to learn correctly. What is the probability that she was taught by method A?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Two methods, A and B are available for teaching a certain industrial skill. The failure
rate is 20% for A and 10% for B. However, B is more expensive and hence is used
only 30% of the time. A worker was taught the skill by one of the methods but failed
to learn correctly. What is the probability that she was taught by method A?
Assume D=Method A and DC = Method B; fail = positive
(a fraction like a/b., simplify)
O
P(D)=
• P(D)=
P(+1D) =
P(+1D)=
P(+)
P(D1+) =
(a fraction like a/b.simplify)
(a fraction, no decimal,simplify)
(a fraction, no decimal.simplify)
(a fraction, no decimal)
(a fraction, no decimal)
Transcribed Image Text:Two methods, A and B are available for teaching a certain industrial skill. The failure rate is 20% for A and 10% for B. However, B is more expensive and hence is used only 30% of the time. A worker was taught the skill by one of the methods but failed to learn correctly. What is the probability that she was taught by method A? Assume D=Method A and DC = Method B; fail = positive (a fraction like a/b., simplify) O P(D)= • P(D)= P(+1D) = P(+1D)= P(+) P(D1+) = (a fraction like a/b.simplify) (a fraction, no decimal,simplify) (a fraction, no decimal.simplify) (a fraction, no decimal) (a fraction, no decimal)
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