Question

Robert is entering a contest at a local radio station. all of the cards with the correct answer will be placed in a barrel, and from it will be drawn the name of the winner. Robert submits 200 post cards with the correct answer for the drawing. If 250,000 entries were received and 16,000 of them are correct, what is the probability that Robert will win?

Answer 1

Student government sold 500 tickets for a raffle. They sell each ticket for $1. An officer draws one winning ticket from a box. If you've purchased 10 tickets, what is the probability that you'll win?

Answer 2

@younglove

Answer 3

@bibby

Answer 4

@sammie2017

Answer 5

@triciaal

Answer 6

Robert's chances 200/16000

Answer 7

200/16000 when simplified = 1/80

Answer 8

probability of same name = 1/10 * 10/20

Answer 9

correction not same name but own name
own name = 1/20

Answer 10

Raffle 10 tickets out of 500 tickets = 1/50 chance

Answer 11

@triciaal

Answer 12

The gardener mixed up the petunia he bought at the plant shop. None of them are blooming, but he knows he bought 14 purple, 8 red, and 4 white. If he just selects one at random, what is the probability it is red

Answer 13

@StudyGurl14

Answer 14

@bibby @triciaal

Answer 15

@zBrandz23

Answer 16

14 purple
8 red
4 white

14 + 8 + 4 =26 total

number of red/total = prob of picking red
8 / 26

simiplify
4/13

Answer 17

Thank You!

Answer 18

yw

Answer 19

http://openstudy.com/study#/updates/54381a69e4b0c20f78101d9f

Answer 20

The bank is giving away free car blankets to every one who receives a car loan through the bank. The bank now has only a couple of blankets left in each color. There are 2 red, 1 blue, and 8 yellow. Sue has just received an approved car loan. What is the probability the bank will give her a blue blanket.

Answer 21

wouldn't it be 1/11

Answer 22

1 blue/11 over all colors

Answer 23

@dragonmaster917

Answer 24

2 red
1 blue
8 yellow

blue blanket/total blankets

So yes, 1/11

Answer 25

Thanks for the re-assured answer =)

Answer 26

I also had two other questions i wasn't completely confident about could you help me with those last 2

Answer 27

Sure, could you post them *here* http://openstudy.com/study#/updates/54381a69e4b0c20f78101d9f

Answer 28

i'm trying to build my popularity and fan base^

Answer 29

I was one of the first maaaan

Answer 30

Bill would like to use his computer at work to do a budget statement. He knows that 10 of the computers do not work, 3 of the computers have virus that destroys your documents, and 9 of the computers are working. What is the probability that the 1st computer bill tries works correctly. I guessed 9/22

Answer 31

lol u guys but yea 9/22 ? Does it seem accurate

Answer 32

does that medal some one gave me mean yes lol

Answer 33

10 do not work
3 virus that destroys documents (basically means it doesn;t work)
9 work correctly

so...
9/22 is correct!

Answer 34

9/10+3+9=9/22

Answer 35

yeah

Answer 36

i didn't know you could get medals for freely runnin your mouth j/p j/p

Answer 37

that's the only reason I have 92 smartscore brah

Answer 38

lmaoooo @bibby and thx @StudyGurl14 you a genius and i'm steadily workin on being great in math too, anyhow just got one more question i'd like someone to check if if they dnt mind

Answer 39

just post it instead of trying to not step on our toes :p

Answer 40

ok

Answer 41

Amelia sets her cd player to randomly select songs from the 4 cds she's loaded. Disc a has 14 songs, Disk b 9, c 11, and d 10, what is the probability that first song she hears is disk d

Answer 42

10/34 5/17 is what I got

Answer 43

14 disk a
9 disk b
11 disk c
10 disk d

so...*calculating* 10/44 Is the answer, non-simplified