(i) A coin is tossed. What is the type of the event ‘Head or tail appears on the coin’?

(if) A die is rolled. What is the type of the event ‘the point on the upper face of the die is less than 1 or greater than 6’?

What are the two types of charges?

What type of furnace is used for Smelting?

in tossing 3 coins, the probability of getting at least 2 tails is

A coin is tossed 900 times and head turns up 480 times. Test the hypothesis that the coin is unbiased.(Level of significance = 5%)

What are the two types of pure substanes?