Chap 8 - probability Flashcards
1
Q
2 types of probability
A
-theoretical
-expermental
2
Q
define theoretical probability
A
what should happen
3
Q
define experimental probability
A
what actually happened
4
Q
formula for theoretical probability
A
P(x) = what should happen x no. trials
5
Q
formula for probability
A
P(x) = no. times happens x no. trials
6
Q
symbol of probability of something not happening
A
P(x)’
7
Q
how to show probability
A
sample space +/x
8
Q
note: 52 cards in a deck, 26 white/ black, 13 in each suit (assume no joker)
A
9
Q
note: use a tree diagram to help
A
10
Q
and - ( x )
or - ( + )
A
11
Q
probability for heads or tails
A
1/2 + 1/2 = 1
12
Q
deck of cards:
52 cards
4 suits - 13 in each
26 black, 26 white
A
