# Errata

# Sorry, wrong number!

There are some minor and largely self evident typos, but two rather serious
ones.

### Page 101 Line 10

The probability of getting either heads or tails when tossing a coin has
become transmogrified into ½. It is, of course, 1.

### Index

Owing to a software compatibility problem, there are substantial lacunae in
the index. These mainly affect the last third of the book.

# The epidemiologists

There are three or four minor typos that are self evident.

There is a logical error in the construction of the table on page 22. As a
result, the entries in the right hand column have been displaced upwards by one
place. In order for the subsequent argument to be correct, the value 23 should
be replaced by 24.

There are brackets missing in the diode equation of page 45, which should
read:

*i* = *I * [exp (*ev/kT*) -1]

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