Probability distribution calculator
Give the values of a random variable X and their probabilities - with an unknown like k if the question has one - and get k, the mean, the variance and the standard deviation with the working table ISC Mathematics expects.
Practise on real ISC questions
- A biased four-sided die with faces labelled 1, 2, 3 and 4 is rolled and recorded. Let $X$ be the result… 2023 Specimen
- The probability distribution of random variable X is given below: X 1 2 3 4 5 P(X) m 3m a 5m b If… 2027 Specimen
- A primary school teacher wants to teach the concept of 'larger number' to the students of Class II. To teach… 2024
- A school conducted an inter house quiz competition. The number of students who participated in the… 2026 Improvement
- In a raffle draw, 1000 raffle tickets are sold for ₹ 1 each. Each has an equal chance of winning. First prize… 2025 Practice
- From a lot of 6 items containing 2 defective items, a sample of 4 items are drawn at random. Let the random… 2018
- A box contains 30 fruits, out of which 10 are rotten. Two fruits are selected at random one by one without… 2023
- Let $X$ be a discrete random variable. The probability distribution of $X$ is given below: $X$ $30$ $10$… 2025
- Children of a society practise building human pyramids for 16 days to participate in the pyramid building… 2026
- Kiran plays a game of throwing a fair die 3 times but to quit as and when she gets a six. Kiran gets +1 point… 2025 Specimen
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