Friday

March 6, 2015

March 6, 2015

Posted by **gary** on Sunday, January 15, 2012 at 11:31am.

What is the probability that all 3 pennies will land on tails?

- math -
**Reiny**, Sunday, January 15, 2012 at 11:38amHHH

HHT

HTH

HTT

THH

TTH

THT

TTT

So, what do you think?

- math -
**drwls**, Sunday, January 15, 2012 at 11:38amThere are 2^3 = 8 possibilities (permutations) if the order of appearance is important.

HHH

HHT

HTH

HTT

TTT

THT

TTH

TTT

There are 4 combinations (0,1,2 or 3 tails)

The probability of TTT is 1/8

**Answer this Question**

**Related Questions**

math - Three pennies are tossed into the air.What is the probability they will ...

math - A child's coin bank contains $2.58 in pennies and nickels. If the number...

math - Jenny places 100 pennies on a table, with 30 showing heads and 70 showing...

maths - Class 5G is having a pizza party. Mrs Baker asked all the children to ...

MATH - some pennies were on the table.erin saw that 56 were heads up and 44 were...

math - You are going to toss 2 pennies 20 times. Make a prediction. how many ...

math - Petra and Yelyenna begin with same number of pennies. After Petra gives ...

Math Qs. Check!!!!!! - Jake puts pennies into a jar each morning and lets his ...

Probability - Mary had 6 pennies and 4 nickels. If she took three coins, what is...

Math - Suppose there are 500 pennies in a row... (math problem)? The pennies are...