Question

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

Answer 1

what is the probability she would draw out a wrong address

Answer 2

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

Answer 3

So if I am right, it would be 4/100 and that can be simplified to 1/25

Answer 4

THats not one of the answers

Answer 5

oh, sorry then, It has been a while since I have done probability

Answer 6

let me go read up on it quick then get back here

Answer 7

A 3/2475
B 3/2500
C 4/2475
D 1/625

Answer 8

(4/total)*(3/total-1)

Answer 9

1st time round prob= 4/total
2nd time, theres 1 less , so = 3/(total-1)

Answer 10

I dont get it?

Answer 11

but wouldn't that equal 1/825?

Answer 12

but thats not one of the answers

Answer 13

exactly

Answer 14

let me see....

Answer 15

let me try to get someone here that knows tis...

Answer 16

its ok I have another question that i need help with too

Answer 17

post the one here while i try to get someone here

Answer 18

it was C

Answer 19

working pls

Answer 20

could you explain it @ZhangYan