10 questions
A box contains 12 white marbles and k black marbles. If a marble is picked randomly from the box, the probability of getting a white marble is . Find the value of k.
4
8
13
15
Ryan has 5 Kit Kat, 4 Cadbury and 3 Hershey. He wants to eat 2 chocolates. Find the probability that he eats chocolate of the same brand?
The probability that Beckham qualifies for the final of a track event is while the probability that Owen qualifies is . Find the probability that only one of them qualifies?
The probability of Nora being chosen as a school prefect is while the probability of Aini being chosen is . Find the probability that neither of them is chosen as school prefect?
The probability that a student becoming an artist is 0.32. David, Covid and Ravit are interested in becoming artist. Find the probability that only 1 of them is chosen as artist?
0.4439
0.1480
0.0328
0.0096
In a selection of a class monitor, the probability that Haizq is chosen is , while the probability that either Haziq or Esther is chosen is . Find the probability that both Haziq and Ester is not chosen?
What is the probability of female teachers in Mathematics Department (Mathematics + ASK + Counselor) in our school?
Find the probability ?
A dice is thrown. The probability of getting the number '4' is and the probabilities of getting other than number '4' are equal to each other. If a dice is thrown twice, find the probability of finding 2 different numbers.