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Erica was out of town for a month, so she had her friend Sara check her mailbox. Each day, Sara would count how many different types of mail Erica received and then place the mail in a box inside Erica's apartment. The table below shows how many pieces of each type of mail Erica received during the month.
Erica's Mail Received in a Month
Type of Mail Number of
Pieces
Bills20
Cards6
Junk Mail24
Magazines8
Advertisements38
Wrong Address 4
According to the table, if Erica drew two pieces of mail randomly from the box, without replacement, what is the probability she would draw out
 one year ago
 one year ago
Erica was out of town for a month, so she had her friend Sara check her mailbox. Each day, Sara would count how many different types of mail Erica received and then place the mail in a box inside Erica's apartment. The table below shows how many pieces of each type of mail Erica received during the month. Erica's Mail Received in a Month Type of Mail Number of Pieces Bills20 Cards6 Junk Mail24 Magazines8 Advertisements38 Wrong Address 4 According to the table, if Erica drew two pieces of mail randomly from the box, without replacement, what is the probability she would draw out
 one year ago
 one year ago

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Amy876Best ResponseYou've already chosen the best response.1
what is the probability she would draw out a wrong address
 one year ago

DoomDudeBest ResponseYou've already chosen the best response.0
1/25 is the chance she will draw a wrong address, if she draws 4 times, that would be 1/25 times 4, that would equal 4/100
 one year ago

DoomDudeBest ResponseYou've already chosen the best response.0
So if I am right, it would be 4/100 and that can be simplified to 1/25
 one year ago

Amy876Best ResponseYou've already chosen the best response.1
THats not one of the answers
 one year ago

DoomDudeBest ResponseYou've already chosen the best response.0
oh, sorry then, It has been a while since I have done probability
 one year ago

DoomDudeBest ResponseYou've already chosen the best response.0
let me go read up on it quick then get back here
 one year ago

Amy876Best ResponseYou've already chosen the best response.1
A 3/2475 B 3/2500 C 4/2475 D 1/625
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.0
(4/total)*(3/total1)
 one year ago

kevinkeeganBest ResponseYou've already chosen the best response.0
1st time round prob= 4/total 2nd time, theres 1 less , so = 3/(total1)
 one year ago

DoomDudeBest ResponseYou've already chosen the best response.0
but wouldn't that equal 1/825?
 one year ago

Amy876Best ResponseYou've already chosen the best response.1
but thats not one of the answers
 one year ago

DoomDudeBest ResponseYou've already chosen the best response.0
let me try to get someone here that knows tis...
 one year ago

Amy876Best ResponseYou've already chosen the best response.1
its ok I have another question that i need help with too
 one year ago

DoomDudeBest ResponseYou've already chosen the best response.0
post the one here while i try to get someone here
 one year ago

DoomDudeBest ResponseYou've already chosen the best response.0
could you explain it @ZhangYan
 one year ago
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