CrazyEngineers Archive
Old, but evergreen and popular discussions on CrazyEngineers, presented to you in read-only mode.
@ISHAN TOPRE • 09 Sep, 2011
Friends,
I GATE, I have seen that about 10-12 marks come directly from Maths. Out of which Probability and statistics.has a big share.
I am dedicating this thread to for practicing and posting some simple methods for probability problems.

I will be posting the common types of questions which are asked in GATE.

Feel free to make your contributions.

Instruction: NO SPAMMING. SPAMMERS WILL BE BANNED.
-By order-
@ISHAN TOPRE • 09 Sep, 2011 • 1 like Type 1]

A company has three machines A, B, C. They produce 15%, 20% and 65% of identical goods respectively. Out of them the defective pieces produced by each machine are 0.01, 0.03, 0.15.

What is the probability that a defective piece is selected and it is produced by Machine C?
Solution:[TABLE="class: grid, width: 350"]
[TR]
[TD]Machine[/TD]
[TD]A[/TD]
[TD]B[/TD]
[TD]C[/TD]
[/TR]
[TR]
[TD]Probability Of Production P(M)[/TD]
[TD]15/100[/TD]
[TD]20/100[/TD]
[TD]65/100[/TD]
[/TR]
[TR]
[TD]Defects By Each Machine P(D/M)[/TD]
[TD]1/100[/TD]
[TD]3/100[/TD]
[TD]15/100[/TD]
[/TR]
[/TABLE]

We have to find P(M/D)=P(C/D)

We will use Baye's Theorem
P(C/D)= {0.65*0.15)/ {0.15*0.01+0.20*0.03+0.65*0.15}

P(C/D)=13/14
4k views

## Related Posts

@Sanyam Khurana · Mar 28, 2013

Hi CEans, I am a CSE student, often discussed this topic previously on many Engineering related forums, and the answer I got is this conclusion - GRE - Needs a...
1.4k views

@Chirayu Samarth · Jan 1, 2015

The Indian mobile manufacturer, Xolo has announced its first smartphone of the year- Q700 Club. The smartphone is listed on the company’s official website and is priced at INR 6,999....
6.5k views

@maria james · Sep 28, 2012

Final year b.tech student in search of a new,relevant,attractive theme for college magazine.eg:energy conservation,green energy..
1.9k views

@vmk · May 8, 2012

i am M tech student, i want to publish research paper but don't know how? help me by giving your suggestions.
1.3k views

@Ankita Katdare · Sep 13, 2011

L & T (Larsen & Toubro) visits campus frequently for placements. Could anyone share their latest placement process? Do they conduct GDs? Please post the difficult questions you faced in...
1.8k views