**Probability & Statistical Techniques Preview year question paper 2015**

Probability & Statistical Techniques Questions paper can be used full all computer science Student like BSC IT , BCA , BSC Computer science, B.Tech Computer science and Information technology field . student to help and some basic understanding of Probability & Statistical techniques question paper to help to get more of number of this subject .

**Probability & Statistical Techniques question paper 2015**

**Probability & Statistical Techniques question paper 2015**

Q1. Attempt any Five questions

- Define Sample Space .Also Explain Sampling with & Without Replacement ?.
- Write a short note on Poisson Distributions?.
- Write a short note on Erlang distributions?.
- What is Frequency distribution ? Differentiate between geometric mean & harmonic mean ?.
- The Probability of occurrence of an event A is 0.7 , the Probability of non-occurrence of event B is 0.5 and that of at least one of A and B not occurring is 0.6 Find the Probability that at least one of A and B Occurs ?
- A box contains 10 articles out of which 3 are defective . if a random sample of 5 articles is drawn without replacement , calculate the Probabilities that the sample contains ?.

- Only one Defective
- At least one defective

Q2. Attempt any four questions :

- Explain Continuous Random Variable ?.
- Explain Correlation and Regression ?.
- Explain Conditional Probability ?.
- What is binomial distribution ?.
- Define Histogram ?.

Q3. Attempt any Five Questions :

- State and Prove Bayes’ Theorem ?.
- Define Normal distributions . state the Important Properties of normal distribution?.
- Explain random sampling & sample statistics ?.
- The letters of the word computer are arranged at random . find Probability that vowels occupy even Place ?.
- The number of monthly breakdowns of a computer is random variable having Poisson Distributions with parameter Y=1.8 find the Probability that this computer will function for a month ?.

(A)Without a breakdown

(B)With only one breakdown

6. Define chi-square and discuss its uses in testing of Hypothesis .

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