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20344_sem 4 module 9

# 20344_sem 4 module 9 - 1 2 3 4 5 Prove that for poisson...

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1. Prove that for poisson distribution the mean value is equal to its variance. 2. Describe the chief characteristics of normal distribution 3. Derive the moment generating function of normal distribnution 4. Prove that Normal distribution is a symmetrical distribution 5. Two dice are thrown at a time. Find the probabilities of the following events: (i) the number shown are equal ii) the difference of the numbers shown is 1. 6. Four persons are to be chosen at random from a group containing 3 men, 2 women and 4 children. Find the chance that exactly two of them will be children. 7. From a pack of 52 cards 5 cards are drawn. What is the probability that these 5 will contain just one all? 8. 6 boys and 6 girls sir in a raw at random. Find the probability that all the six girls sit together. 9. In a hand at bridge what is the chance that the 4 queens out of 13 cards are held by a particular player. 10. Find the odds in favor and adds against drawing 2 kings from a pack of 52 cards.

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20344_sem 4 module 9 - 1 2 3 4 5 Prove that for poisson...

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