probabilities Flashcards
1
Q
simple probability
A
measured 0-1 (0=impossible 1=certain
answere as a function e.g 1/2
2
Q
setting it out
A
a dice id rolled probability of even number
(p=probability)
p(even no.)3/6 (simplist form)
1/2
3
Q
sample space diagrams
A
it is a list to sort out more complicated questions eg
what are all the posobilities of getting all 3 the same if you flip 3 coin
4
Q
estimating probabilities ( also called relative frequency)
A
formula = mo. of times the event occurs / total number of times you carried out the event e.g
5
Q
expected frequency of an evnt
A
formula= probability of event x number of experiments
6
Q
fair or biased
A
method = work out estimated probability
work out actual probability compare answers if big difference biased
