Probability Flashcards
1
Q
Probability is…
A
the chance that something will happen
2
Q
probablity(A) =
A
Number of times A occurs/total number of outcomes
3
Q
Mutually exclusive events
A
are outcomes that cant happen at the same time. Rolling a ‘5’ and rolling a ‘4’
4
Q
sample space..
A
a table or diagram which shows the set of all possible outcomes
5
Q
experimental probability or relative frequency is…
A
an estimate of the prob based on the experimental data
6
Q
Increasing numbers of trial leads to…
A
a better estimate of probability
7
Q
if you roll a dice 100 times what is the probability of getting a 6
A
1/6
8
Q
How many times would you expect to get a 6
A
1/6 *100
9
Q
number of expected times =
A
p(A) * number of trials
10
Q
Relative frequency =
A
numbers of times we see the outcome/number of trials
