Probability a Red Ball Source and person speak Truth 3 out of 4 times Bayes Theorem Application

#Permutation_combination_made_simple #datamanagement_IBSL #Probability_Statistics #permutationandcombination #permutation_combination #combinatorics_IB

[cruzzzfranklins]

Box 1 contains two red balls and three green balls . Box 2 contains 4 red balls and 1 green ball . One ball is picked at random from box one and placed in box 2. Once more a ball is picked at random from box 2. Determine the probability that the ball picked from box 2 is green...(hello sir would you help me with this pliz?)

[FemkeHuisman]

Suppose one ball is picked at random from a box containing 60 balls with 15 in red, 15 in blue, 15 in yellow and 15 in green.Suppose the balls are marked with numbers ranking from 1 to 20 for each color, namely for each number there are fours balls in red, blue, yellow and green separately. Let A denote the probability of obtaining a ball with a number 20, and let B denote the probability of obtaining a ball in red color. Calculate P [A or B]. Can you help me with this?

[vloger]

A company learns 1 out of 500 of their products are defective or 0.2%.
A company buys diagnostic tools that correctly identifies correctly positive defective part 99% of the time.
If a part is diagnostic defective what is the probability of defective parts??

[sreevahinisrinivas.k]

Tq so much Anil Sir for perfect n clear explanation ☺

[sainathreddyvarikuti]

In campus interview, there are 50 candidates, 10 from M.E, 10 from A.E, 30 from EIE. The recruiter finally issued offer letters to 14 candidates. Find the probability that all selected candidates belonged to only EIE?

Answer for this question sir, ,

I'm getting 0.00015636

[dorindorin]

very clear with bags, but the second example is not clear at all... I cannot see Bayes formula at all.

[enoch]

Thankyou sur i understood the concept very clearly

[chiragraawat]

Are 😌😌 written mai to solve kr dete 🤮🤮

[bethelosuagwu]

WinBUGS code for Q1:
model{
y <- 1;

y~dbern(theta.red); #likelihood.
theta.red <- boxes[box]; #get the probability for the selected box
box ~ dcat(p[]);# select a box

boxes[1] <- 3/7;#the probability of red in box A
boxes[2] <- 4/9;#the probability of red in box B

p[1] <-1/2;# P(A) i.e the prio for box A
p[2] <- 1/2;# P(B) i.e the prior for box B

prob.boxA <- equals(box, 1); # P(A|R)
}