Presentation is loading. Please wait.

Presentation is loading. Please wait.

Further distributions

Similar presentations


Presentation on theme: "Further distributions"— Presentation transcript:

1 Further distributions

2 Discrete random variables

3 Expectation and variance
Read Examples , pp Do Q1-Q7, p.261

4 Linear combinations of normal variables
Read Examples , pp Do Q1-Q4, p.417

5 The Poisson distribution

6 Properties of the Poisson distribution
Read Examples , pp Do Q1-Q10, pp

7 The sum of independent Poisson variables
Read Examples 5.25 & 5.26, pp Do Exercise 5f, p.303

8 Continuous random variables
Read Examples 6.1 – 6.4, pp Do Exercise 6a, pp

9 Expectation Read Examples 6.5 – 6.7, pp.320-323
Do Exercise 6b, pp Read Examples 6.8 – 6.10, pp

10 Variance and mode Read Examples 6.11 – 6.15, pp.328-333
Do Exercise 6c, pp

11 Cumulative distribution function

12 Median, quartiles and other percentiles
Read Examples 6.16 & 6.17, pp Do Exercise 6d, pp

13 Cumulative distribution function
Read Examples , pp Cumulative distribution function Do Exercise 6e, pp

14 Uniform distribution Read Examples 6.21 - 6.26, pp.345-349
Do Exercise 6f, pp

15 The p.d.f. of a related variable
Frequently, the random variable being measured is not the ultimate objective. What many be of primary interest is some function of these variables. p.d.f. of X c.d.f. of X c.d.f. of Y p.d.f. of Y

16 Example 1

17 Example 2

18 Questions

19 The geometric distribution
Read Examples 5.2, pp The geometric distribution

20 The geometric distribution
Read Examples , pp Do Exercise 5a, pp

21 Deriving the (negative) exponential distribution
Differentiating yields:

22 The exponential distribution
and so:

23 Example 1

24 Shape of the exponential distribution

25 Expectation and variance of the exponential distribution

26 Example 1

27 Example 2

28 Questions 1. 2. 3. 4. 5. 6.


Download ppt "Further distributions"

Similar presentations


Ads by Google