C

1103158404

Level: 
C
A box (see the picture) contains \( 5 \) red balls and \( 7 \) green balls which are marked with numbers. A ball is drawn uniformly at random from the box. Let the event $A$ be: The drawn ball is green. And let the event $B$ be: The drawn ball is marked with the number which is greater than $6$. Find \( P(A|B) \). (Round the result to two decimal places.)
\( 0{.}50 \)
\( 0{.}43 \)
\( 0{.}25 \)
\( 0{.}83 \)

1103158403

Level: 
C
A box (see the picture) contains \( 5 \) red balls and \( 7 \) green balls which are marked with numbers. A ball is drawn uniformly at random from the box. Find the probability that the ball is marked with even number given that the ball is red. (Round the result to two decimal places.)
\( 0{.}60 \)
\( 0{.}50 \)
\( 0{.}83 \)
\( 0{.}25 \)

1103158402

Level: 
C
We roll red and yellow dice. Let the event $A$ be: On the red die a number greater than $2$ is rolled. And let the event $B$ be: The sum of points rolled on both dice is greater than $6$. Find \( P(A|B) \). (Note: In the table the sums of points on both dice are listed.)
\( \frac34 \)
\( \frac12 \)
\( \frac67 \)
\( \frac14 \)