Final answer:
The sample space is {R, A, L, E, F, G, H}. The event E, 'the letter selected is a vowel', is {A, E}. The event F, 'the letter selected is a vowel or is not a K', is {A, E, R, L, F, G, H}.
Step-by-step explanation:
The sample space for this experiment is S = {R, A, L, E, F, G, H}. Each letter in the word 'RALEFGH' represents a possible outcome when selecting a letter at random.
The event E, 'the letter selected is a vowel', would be E = {A, E}. These are the letters in the sample space that are vowels.
The event F, 'the letter selected is a vowel or is not a K', would be F = {A, E, R, L, F, G, H}. These are the letters in the sample space that are either vowels or not the letter K.