# The Multiplication Rules

• Feb 15th 2011, 11:41 AM
jickjoker
The Multiplication Rules

hi can anyone help

A die is rolled five times. What is the probability of getting 5 twos?
• Feb 15th 2011, 11:46 AM
Plato
Quote:

Originally Posted by jickjoker
A die is rolled five times. What is the probability of getting 5 twos?

Well the probability of getting two fives in two rolls is $\displaystyle \left(\dfrac{1}{6}\right)^2$.
• Feb 15th 2011, 11:52 AM
jickjoker
6*6*6*6*6=1 in 7776

the book im reading says the answer is 1 in 32 ?
probabilty demystified by bluman
• Feb 15th 2011, 11:55 AM
Plato
Quote:

Originally Posted by jickjoker
A die is rolled five times. What is the probability of getting 5 twos?[/LEFT]

The answer to that question is $\displaystyle \left(\dfrac{1}{6}\right)^5$.
I don't care what the book says.
• Feb 15th 2011, 02:57 PM
Soroban
Hello, jickjoker!

Quote:

. . $\displaystyle \boxed{\begin{array}{c}\text{A coin is tossed 5 times.} \\ \text{What is the probability of getting 5 Heads?} \end{array}}$