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Monthly Archives: December 2022
IB Probability
The letters of the word PROBABILITY are written on 11 cards as shown below. Two cards are drawn at random without replacement. Let A be the event that the first card drawn is letter A. Let B be the even … Continue reading
IB Probability, Independent and not mutually exclusive events question
Events A and B are independent. Given that P(B)=2P(A) and P(AUB)=0.52, find P(B).
Probability IB HL (Baye’s Theorem application)
An influenza virus is spreading through a city. A vaccination is available to protect against the virus. If a person has had the vaccination, the probability of catching the virus is 0.1; without the vaccination, the probability is 0.3. The … Continue reading
Sumant's 1 page of Math 