The maths question contains atleast one question on probability. I have been receiving queries from the students who are facing problem in probability. To help all learn-hubbers, we will posting few questions on probability every week here.
The probability of event A is the number of ways event A can occur divided by the total number of possible outcomes.
Probability of event A =
(No of ways event A can occur ) / ( Total number of possible outcomes )
Helpful Hints about Probability
1. If an event is certain to occur, the probability is 1.
for e.g : An event with a probability of 1 can be considered a certainty: for example, the probability of a coin toss resulting in either "heads" or "tails" is 1, because there are no other options, assuming the coin lands flat.
2. If an event is certain not to occur, the probability is 0.
An event with a probability of 0 can be considered an impossibility: for example, the probability that the coin will land (flat) without either side facing up is 0, because either "heads" or "tails" must be facing up.
3. If you know the probability of all other events
occurring, you can find the probability of the
remaining event by adding the known probabilities
together and subtracting from 1.