From the employees of a company, \(5\) persons are selected to represent them in the managing committee of the company. Particulars of five persons are as follows: A person is selected at random from this group to act as a spokesperson. What is the probability that the spokesperson will be either male or over \(35\) years?
Two dice are thrown. The events A, B and C are as follows:
A: getting an even number on the first die.
B: getting an odd number on the first die.
C: getting the sum of the numbers on the dice ≤5.
State true or false: (give reason for your answer)(i) A and B are mutually exclusive(ii)A and B are mutually exclusive and exhaustive(iii) A=B′(iv)A and C are mutually exclusive(v)A and B′ are mutually exclusive.(vi) A′,B′,C are mutually exclusive and exhaustive.
If a and b are distinct integers, prove that a - b is a factor of \(a^n - b^n\) , whenever n is a positive integer. [Hint: write\( a ^n = (a - b + b)^n\) and expand]