Question

Betty picks 4 random marbles from a bowl containing 3 white, 4 yellow, and 5 blue marbles.
The probability that exactly 1 of the 4 marbles drawn is blue is ? The probability that at least 1 of the 4 marbles drawn is white is ?

Answer 1

well right of the bat we know the chances of getting one blue marble in one pull, 5/12

Answer 2

ok

Answer 3

put your answr chices

Answer 4

in the first question the odds are against us

Answer 5

so it will be less than 5/12

Answer 6

question 1 choices
0.0707
0.2135
0.3535
0.6465

Answer 7

question 2 choices
0.2181
0.2546
0.5090
0.7455

Answer 8

for the first question we know it is not D

Answer 9

ok

Answer 10

i would go with b, the chances are not as good as .35, but not as bad as .07
but i am not 100% sure on this one

Answer 11

for question 2 we know it is either c or d just by the fact that drawing a bluw is .416 chance

Answer 12

but atleast one that boosts are chances

Answer 13

so i would go with d as .5 isnt much better than .42.

Answer 14

but these answers unlike the last ones, might not be 100% correct

Answer 15

i just used the process of elimination