What is the probability that three customers waiting in a bank will be served in the Sequence of their arrival at the bank?
Answer: B
The table gives the score of a group of students in an English language test.
If a student is chosen at random from the group, what is the probability that he scored at least 6 marks?
Answer: C
Use the following information for question 2 and 3
The surname of 40 children in a class were arranged in alphabetical order,16 of the surnames begin with O and 9 of the surnames begins with A. 14 letters of the alphabet do not appear as the first letter of a surname.
If more than one surname begins with a letter besides A and O, how many surnames begin with the letter?
What is the probability that the surname of a child picked at random from the class begins with either O and A?
Answer: A
What is the probability of having an odd number in a single toss of a fair die?
