TS ICET · Mathematical Ability
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Probability
Classical probability and elementary conditional probability.
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Take a full mock →Q1 · Probability · EASY
A bag contains 5 red balls and 3 blue balls. If one ball is drawn at random, what is the probability that it is a red ball?
Q2 · Probability · EASY
Two dice are thrown simultaneously. What is the probability of getting a sum of 7?
Q3 · Probability · MEDIUM
A box contains 4 defective and 6 non-defective items. Two items are drawn at random without replacement. What is the probability that both items are non-defective?
Q4 · Probability · MEDIUM
The probability of A solving a problem is 1/3 and the probability of B solving the same problem is 1/4. If both try independently, what is the probability that the problem is solved?
Q5 · Probability · MEDIUM
In a class, 60% of students passed in Mathematics and 70% passed in English. If 50% passed in both subjects, what is the probability that a randomly selected student passed in at least one subject?