Thanks in advance

- Thread starter ITman95
- Start date

Thanks in advance

Or at least you list the outcomes with different scenarios.

e.g. What will \( D \) equals to when you have

- penny + nickel

- dime + nickel

- penny + dime

- 2 pennies

- 2 nickels

- 2 dimes

Answering all these will be a definition too.

- dime + nickel=15

- penny + dime=11

- 2 pennies=2

- 2 nickels=10

- 2 dimes=20

But the question is saying 2 coins are chosen, what is the probability that the numerical difference between them is greater than or equal to 0 which means that when the first coin is chosen that the second coin thats chosen MUST be either the same as the first or LARGER than it.

There are 9 equally likely outcomes

(1,1) (1,5) (1,10) (5,1) (5,5) (5,10) (10,1) (10,5) (10,10)

Six of the outcomes the the first coin is greater than or equal to the second

(1,1) (5,1) (5,5) (10,1) (10,5) (10,10)

p=6/9=2/3

Just my two cents