Step: 1
Choose a letter from the word "MATHEMATICS".
Step: 2
P(M) = 211, P(A) = 211, P(T) = 211,P(H) = 111, P(E) = 111, P(I) = 111, P(C) = 111, P(S) = 111.
Step: 3
This event has no equally likely outcomes.
[Since the probabilities are not equal.]
Step: 4
Choose a letter from the word "SCIENCE".
Step: 5
P(S) = 17, P(C) = 27, P(I) = 17, P(E) = 27, P(N) = 17.
Step: 6
This event has no equally likely outcomes.
[Since their probabilities are not equal.]
Step: 7
Choose a pen from 7 blue and 9 red pens.
Step: 8
P(Pen) = 116, P(Red Pen) = 916, P(Blue Pen) = 716.
Step: 9
This event has no equally likely outcomes.
[Since their probabilities are not equal.]
Step: 10
So, all of the above experiments have no equally likely outcomes.
Correct Answer is : All the above