Suppose you have a wallet with $5 bills, $10 bills, and $20 bills. If the probability of picking a $20 bill is 4/15, and the probability of piciing a $5 bill is 1/3, what is the probability of picking a $20 bill?
a. 1/15
b. 1/5
c. 4/15
d. 2/5 **
9 answers
you are correct.
15/15 - 4/15 - 5/15 = ?
Yes, 2/5 is right.
Yes, 2/5 is right.
I'm sorry but this isincorrect
@Ms.Sue (THE FAKE ONE) is always making peoples grades bad, thanks. (<-- sarcasm)
D IS CORRECT
HELPP
Fake Mrs. Sue, at least learn to spell lol.
is 2/5 correct?
Yes, 2/5 is correct.
To get this answer, you need to find the probability of picking a $20 bill by subtracting the probability of picking a $5 bill and the probability of picking a $10 bill from 1 (since these are the only three options).
So, 1 - 1/3 - x = 4/15, where x is the probability of picking a $10 bill.
Solving for x, you get x = 1/15.
Then, the probability of picking a $20 bill is 4/15 - 1/15 = 3/15 = 1/5.
To get this answer, you need to find the probability of picking a $20 bill by subtracting the probability of picking a $5 bill and the probability of picking a $10 bill from 1 (since these are the only three options).
So, 1 - 1/3 - x = 4/15, where x is the probability of picking a $10 bill.
Solving for x, you get x = 1/15.
Then, the probability of picking a $20 bill is 4/15 - 1/15 = 3/15 = 1/5.
1 answer