AS/A2 Stats 1 Stats 3

S2 Topic 2: Continuous random variables
Visualizing the mode
A pdf f(x) is defined by:
The mode of the distribution is the value occuring with highest probability. On a graph of the pdf this will be the maximum turning point - or the point where the gradient is zero. Use the display below to get an approximate estimate of the mode of this pdf.

Answers The value required for the mode is about 2. To verify this value precisely you would need to use calculus to find the gradient function. Based on free Java applets from JavaMath