CAIE S1 2024 November — Question 7 4 marks

Exam BoardCAIE
ModuleS1 (Statistics 1)
Year2024
SessionNovember
Marks4
TopicPermutations & Arrangements
TypeArrangements with positional constraints

7
  1. How many different arrangements are there of the 9 letters in the word INTELLECT in which the two Ts are together?
  2. How many different arrangements are there of the 9 letters in the word INTELLECT in which there is a T at each end and the two Es are not next to each other?
    Four letters are selected at random from the 9 letters in the word INTELLECT.
    [0pt]
  3. Find the percentage of the possible selections which contain at least one E and exactly one T. [4]
    If you use the following page to complete the answer to any question, the question number must be clearly shown.
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