Stats 141

Example:

There are six socks in a drawer. Two are yellow, two are green, and two are purple. If two socks

are drawn at random (socks are not replaced), what is the probability that...?

A.) Both are yellow

P(Sock 1 yellow and Sock 2 yellow)

B.) Both same colour

P(Sock 1 and Sock 2 same colour)

C.) First is yellow and the second is not yellow

P(First sock yellow and second sock not yellow)

Example 2:

Same information as Example 1 but with replacement.

A.) Both yellow

P(Both yellow)

B.) Both same colour

P(Sock 1 and sock 2 are same colour)

C.) First is yellow and the second is not yellow

P(First yellow and second not yellow)

Example 3:

The chance a car turns left at an intersection is 30%.

What is the probability at least one of the next 4 cars turns left.

Assume the chance of any one car turning left is independent of any other.

Continuous Distribution

- Has to do with area under the curve

Side note: In discrete:

Uniform Distribution

Example:

Arrival times of an aircraft are uniformly distributed between -5 and 10 minutes.

A.) Draw the graph that represents this distribution

B.) What is the density function ?

C.) What is the probability the plane is early?

D.) What is the chance the plane arrives between 5-8 minutes late?

E.) What is the expected arrival time of the plane?

**Unlock Document**

## Similar documents like this

###### HLSC 3022C Chapter 2: free body diagram example 14

Textbook Note

###### HLSC 3022C Chapter 2: free body diagram example 13

Textbook Note

###### HLSC 3022C Chapter 2: free body diagram example 16

Textbook Note

###### HLSC 3022C Chapter 2: free body diagram example 5

Textbook Note

###### HLSC 3022C Chapter 2: free body diagram example 3

Textbook Note

###### HLSC 3022C Chapter 2: free body diagram example 1

Textbook Note

###### HLSC 3022C Chapter 2: free body diagram examples 2 and 4

Textbook Note

###### HLSC 3022C Chapter Notes - Chapter 2: William Trelease

Textbook Note

###### HLSC 3022C Chapter 2: how to set up a free body diagram

Textbook Note

###### HLSC 3022C Chapter Notes - Chapter 1: Swiss 1Jj Tarot

Textbook Note

###### HLTH 2011 Chapter 1: intro to health ethics and regulations

Textbook Note

###### HLTH 2011 Chapter 1: basics of healthcare ethics

Textbook Note

###### HLSC 4015C Lecture 12: cancer notes

Lecture Note

###### HLSC 4015C Lecture 12: brain health notes

Lecture Note

###### HLSC 4015C Lecture 12: Stroke notes

Lecture Note