Question

Probability question.

Answer 1

Maria is playing the bean bag toss at a local fair. The game costs 2 dollars to play. Maria has 4 bean bags to toss into the jar in front of her. The prize she wins is determined by the amount of bean bags she is able to toss in a jar from 8 feet away.

If maria gets all 4 bag beans in the jar she will win a free unlimited rides passes.
If maria gets 3 bag beans in the jar she will win a ticket to ride a Ferris wheel.
If maria gets 2 bag beans in the jar she will win a free bag of cotton candy.
If maria gets only 1 bag bean in the jar she will not win a prize.

What is the probability that Maria wins a free unlimited rides passes or a ticket to ride a Ferris wheel ?

Answer 2

@ganeshie8 @sid0830 @ikram002p

Answer 3

-.-

Answer 4

That all depends if Maria is Shaquiloneal or Lebron james

Answer 5

For arguments sake
Lets say there is an even probability of success and failure
On every shot, 1/2 chance of Win or fail

Answer 6

no seriously, I just thought that the probability to get 1 in, is 1/2
to get in 2, is 1/2 * 1/2 (thus 1/4)
so P(3)=1/8
P(4)=1/16
Right ?

Answer 7

if I am correct, I just don't get the P(3 or 4)

Answer 8

to win four in a row that is
(1/2)^4
to win
any 3 times is
(1/2)^3*(4C3)

Answer 9

now we are okay with both probaililty,
p(3 win or 4 wins) = P(3) + p(4) =( 1/2)^3*4C3 + 1/2^4

Answer 10

why *4C3 ?

Answer 11

Because there are that many ways to win 3

Answer 12

times out of 4

Answer 13

exactly 3 times should be :

S S S F

Answer 14

like the first 3 or , the first 2 and the last shot
or the last 3 shots..
or the first shot and the last 2 shots

Answer 15

(1/2) * (1/2) * (1/2) * (1/2)

(1/2)^4

Answer 16

4C3=4!(3!(4-3)! = 4

Answer 17

that gives 4C3 * (1/2)^4
right ?

Answer 18

I mean 4!/3!(4-3)! and it is 4.

Answer 19

yes makes sense right.. if u think about it, SSSF, there are 4 places for that fail to go

Answer 20

so 1/2 + 1/16 ?

Answer 21

oh my bad 11/2^4!!

Answer 22

forgot about the failure prob

Answer 23

its p(3)+p(4)=4c3*1/2^4 + 1/2^4

Answer 24

p(3 win or 4 wins) = P(3) + p(4) =( 1/2)^4*4C3 + 1/2^4 = 5/16 ?

Answer 25

1/4 + 1/16 ? and that is 5/16