Question

Suppose I pick a jelly bean at random from a box containing one red and eleven blue ones. I record the color and put the jelly bean back in the box.

If I do this three times, what is the probability of getting a blue jelly bean each time? (Round your answer to three decimal places.)

Answer 1

1.09 i believe.

Explanation:

you do 12 (the total number) divided by 11 ( the number of blues) and that’s the answer

Answer 2

0.770

Explanation:

a box containing one red and eleven blue ones

Total 1 red +11 blue = 12 jelly beans

we pick a jelly bean at random from a box .We record the color and put the jelly bean back in the box.

Probability of picking a blue jelly is number of blue jelly divide by total

`P(blue)= (11)/(12)`

Blue is replaced back in the box

`P(another blue)= (11)/(12)`

`P(another blue)= (11)/(12)`

Probability of getting blue each time =

`(11)/(12)  \cdot (11)/(12)  \cdot (11)/(12) =(1331)/(1728) =0.770`