you have 4 $1.00 bills, 2 $5.00 bills, 5 $10.00 bills and 5 $20.00 bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill. What is P($1, then $10)?
a. 9/39
b.5/64
c.3/80
d.1/12

Question

you have 4 $1.00 bills, 2 $5.00 bills, 5 $10.00 bills and 5 $20.00 bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill. What is P($1, then $10)?
a. 9/39
b.5/64
c.3/80
d.1/12

tkhunny · Answer

What is p($1) on the first grab?

anonymous · Answer

wait what? :s
@tkhunny

tkhunny · Answer

How many bills are there?
How many $1s are there?
What is the probability of picking a $1, first?

anonymous · Answer

there are 4 $1.00 bills 
@tkhunny

tkhunny · Answer

Answer all three of my questions, please.

anonymous · Answer

there are 16 bills all together and idek the last lol @tkhunny

tkhunny · Answer

If there are 4 $1 and 16 total, the probability of picking a $1 first is 4/16.

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