Simple and Compound Event

Q. The following table shows the recording of the outcomes on throwing a 6-sided die 50 times. Find the experimental probability of:

Outcome	1	2	3	4	5	6
Frequency	6	11	10	8	9	6

a) rolling a three; b) rolling a number less than three; c) rolling a two or five.

Q. Which of the following events is/are compound event(s)?

1. Two heads are obtained by a coin tossed twice.
2. A die is thrown twice and the sum of the numbers appearing is observed to be 6.
3. Card drawn from a pack of 52 cards is a king.
4. Three coins are tossed simultaneously. Head is obtained on first two coins.