34099979
Description
Mind Map by JUDHAJEET GHOSH, updated more than 1 year ago
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Created by JUDHAJEET GHOSH
about 3 years ago
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Probability
- Definition
- SURE EVENT: when a event has a
probability of 1 to occur
- ELEMENTARY EVENT: event
having only one outcome of the
experiment
- COMPLEMENTARY EVENT: For event E,
complementary event P(ˉE) = 1- P(E)
- EVENT: an outcome of a random
experiment or an event is
something that happened
- IMPOSSIBLE EVENT :
probability of event
is equal to 0
- SURE EVENT: when a event has a
probability of 1 to occur
- Value
- Sum of probability of all elementary
events is 1. Eg: For events A, B and C
P(A)+ P(B)+P(C)=1
- Sum of probability of all elementary
events is 1. Eg: For events A, B and C
P(A)+ P(B)+P(C)=1
- Theoretical
Probability
- 0≤P (E)≤ 1 or what we expect
to happen in the experiment
P(E) = Number of trials in
which the event happened/
Total number of trials
- 0≤P (E)≤ 1 or what we expect
to happen in the experiment
P(E) = Number of trials in
which the event happened/
Total number of trials
- Experimental Probability
- what actually happens in an experiment
P(E)= Number of outcomes favourable to E/
Number of possible outcomes of the
experiment
- what actually happens in an experiment
P(E)= Number of outcomes favourable to E/
Number of possible outcomes of the
experiment
- Random Experiment: Such may result in two or
more outcomes eg. tossing a coin or throwing
a dice
- SAMPLE SPACE:set of all possible outcomes of an experiment
- EQUALLY LIKELY EVENT: the different outcomes have same and equal chance of occurrence
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