Bayesian Probability II

Bayes law is based on the idea that prior knowledge about A (e.g. whether or not a plant is a tree), provides information about B (e.g. whether or not a plant lives indoors).

The formula for Bayes law is: \(P(A | B) = (P(B | A) * P(A)) / P(B)\)

Use this formula to solve the following problem: In a shop, people can take chewing gum from a dispenser on the right, or the left. The dispenser on the right has 7 packets of mint gum, and 3 packets of fruit gum, and the dispenser on the left has 7 packets of mint gum and 7 packets of fruit gum.

Someone buys a packet of mint gum - what is the probability that they took this packet from the right dispenser?

Complete the separate components in your script to solve the probability that someone took gum from the right dispenser, given that the packet was mint.

Take Hint (-30 XP)

Exercise

Bayesian Probability II

Instructions