Question 1 - A-Level Maths

Exam Board	Edexcel
Module	S1 (Statistics 1)
Year	2002
Session	June
Topic	Geometric Distribution
Type	First success on specific trial

An unbiased die has faces numbered 1 to 6 inclusive. The die is rolled and the number that appears on the uppermost face is recorded.
1. State the probability of not recording a 6 in one roll of the die.
The die is thrown until a 6 is recorded.
Find the probability that a 6 occurs for the first time on the third roll of the die.
(3)