# Hidden Questions Stats

Pakistan International College Riyadh

Class XII

1 . Just how many conceivable permutations could be formed through the word ‘statistics'? 2 . In how ways can a team of 11 players be chosen from an overall total of sixteen players? a few. State multiplicative theorem of probability to get dependent incidents. 4. A great aptitude test out with 4 options. When a student marks the options of the questions arbitrarily and individually, then get the likelihood of being right to four questions. a few. A may solve 73% questions within a book and B may solve 60% questions in this book. Find the possibility that arbitrarily selected questions is solved by these people? 6. Precisely what is the likelihood of getting by least 2 heads once 3 gold coins are tossed? 7. Get P(A ∩ B) if P(A) = ¼ and P(B) sama dengan 1/3 and p(A U B) = ½. almost eight. State the laws of expectation.

9. Illustrate the homes of under the radar probability circulation. 10. Given E(X) = 0. 55, Var(X) sama dengan 1 . 55 and Sumado a = 2X + 1 . Find E(Y) and Var(Y). 11. Display that the indicate of the binomial distribution (q + p)2 is 2p. 12. Show that mean is usually 2p and σ2 = 2pq for the binomial division in which n = 2 . 13. A random variable X includes a binomial distribution with E(X) = 2 . 4 and p sama dengan 0. 3. Find the standard deviation of X. 13. Describe the normal distribution and write down their equation. 12-15. What is regular normal variable?

18. The value 2nd moment regarding mean in a normal distribution is 5. Find the next and 4th moment about mean with this distribution. 17. Is just about every symmetrical syndication a normal syndication? 18. Precisely what is the regards between the binomial and typical distribution? 19. Define testing units and frame.

20. What is the difference between sampling and non-sampling error? 21. Brand the 4 techniques used in probability sampling. 22. Provided P1 sama dengan 2/3, n1 = 2, P2 = 2, n2 = installment payments on your Find µP1-P2 and σP1 – P2. 23. Precisely what is the difference between sampling with replacement minus replacement? 24. Find 90% confidence interval of µ from a sample...

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