Is getting a head complementary to getting a tail? Give reasons.

In case of a die is getting a 1 complementary to events getting 2, 3,4, 5,6 ? Give reasons for your answer.

Getting a tail or head…………

A coin is biased such that the probability of getting head is thrice to that of getting a tail. If such coin is tossed twice find the probability of getting one head exactly.

A fair coin is tossed a fixed number times . If the probability of getting seven heads is equal to that of getting nine heads then the probability of getting two heads is

Suppose that a coin is tossed three times. Let A be "getting three heads" and B be the event of "getting a head on the first toss".Show that A and B are dependent events.

When a coin is tossed the probability of getting a tail or head is…….

A fair coin is tossed a fixed number of times. If the probability of getting five heads is equal to that of getting seven heads, then the probability of getting four heads is

The probability of getting a head when a coin is tossed once is…………..

If three coins are tossed simultaneously then write their outcomes. Find the probability of getting at least one head (getting one or more than one head)