PROBABILITY
- Experiment
An experiment is an activity carried out in anticipation of a result out of it. Tossing
a coin, rolling a die and picking a card from a pack of cards, etc., are examples of an
experiment.
Real life experience can be provided by asking the child to either toss a coin or roll a
die and explaining all the related ideas simultaneously.- Random experiment
An experiment is called a random experiment when conducted repeatedly under
essentially homogenous conditions. In other words, an experiment whose outcome
cannot be predicted is called as a random experiment.
The idea may be explained orally and the child may be helped to perform a activity of
his/her own.- Trial
Performing a random experiment is called a trial.
The concept may be taught by helping the child to perform the activity of his/her own- tossing the coin, selecting an object from a pile, etc.
- Event
The outcome of a trial in a random experiment is termed as an event. Once the child
is clear with the idea of a trial, he/she may explained the idea of an event.