1
Q
What is the relative frequency of event ‘A’
A
N(A) / N
i.e. number of occurrences of A / total occurrences
2
Q
What is a PDF? What is its use?
A
Probability density function,
Used to estimate the probability of events that have not been observed
3
Q
What is the formula for z i.e. how do you normalise x?
A
z = (x - µ) / sigma
where µ = mean
sigma = standard deviation
4
Q
What is Guthrie’s dad’s profession?
A
Dentist
