Probability density functions

There are 9 NRICH Mathematical resources connected to Probability density functions
Scale invariance
problem
Favourite

Scale invariance

Age
16 to 18
Challenge level
filled star filled star filled star
By exploring the concept of scale invariance, find the probability that a random piece of real data begins with a 1.
PCDF
problem
Favourite

Pcdf

Age
16 to 18
Challenge level
filled star filled star empty star
When can a pdf and a cdf coincide?
\pdf stories
problem

Pdf stories

Age
16 to 18
Challenge level
filled star filled star empty star
Invent scenarios which would give rise to these probability density functions.
Distribution Differences
problem

Distribution differences

Age
14 to 16
Challenge level
filled star filled star empty star
How could you compare different situation where something random happens ? What sort of things might be the same ? What might be different ?
PDF
problem

Pdf

Age
16 to 18
Challenge level
filled star filled star filled star
Given a probability density function find the mean, median and mode of the distribution.
Circle \pdf
problem

Circle pdf

Age
16 to 18
Challenge level
filled star filled star empty star
What happens if this pdf is the arc of a circle?
Exponential intersection
problem

Exponential intersection

Age
16 to 18
Challenge level
filled star filled star filled star
Can the pdfs and cdfs of an exponential distribution intersect?