Sample space (S) = {0, 1, 2, 3, 4, 5}
∴ n(S) = 6
i. Let A be the event that the card drawn shows a natural number.
∴ A = {1, 2, 3, 4, 5}
∴ n(A) = 5
ii. Let B be the event that the card drawn shows a number less than 1.
iii. Let C be the event that the card drawn shows a whole number.
iv. Let D be the event that the card drawn shows a number greater than 5.
Here, the greatest number is 5.
∴ Event D is an impossible event.