Relative Frequency and Probability Flashcards
1
Q
Probability Formula
A
P(E) = N(E)/N(S)
Probability = Favourable outcomes/Total outcomes in sample space
2
Q
Define
Complementary Events
A
Two events that cover all possibilities. For example if an event is rolling a 2 on a die, then its complement is rolling {1,3,4,5,6}
3
Q
Define
Relative Frequency
A
An estimate of the probability of
an event, calculated by dividing how many times the event occurs in the experiment by the total number of times the experiment was carried out.
4
Q
Define
Expected Frequency
A
How many times an event is predicted to occur in the future, calculated by multiplying how many times the experiment will be repeated (n) by the probability of the event (p).
