We may then consider this to be a multinomial experiment
with r x c possible outcomes.
o
The sample size, n, will be large enough so that, for every cell,
the estimated expected count will be equal to 5 or more.
TwoWay Frequency Tables
Entries in the "Total" row and "Total" column are called marginal
frequencies or the marginal distribution. Entries in the body of the table are
called joint frequencies
Relative Frequency of Table
The relative frequencies in the body of the table are called conditional
frequencies or the conditional distribution.
Twoway tables can show relative frequencies for the whole table, for rows,
or for columns. The table to the right shows relative frequencies for the
whole table. Below, the table on the left shows relative frequencies for
rows; and the table on the right shows relative frequencies for columns.
Each type of relative frequency table makes a different contribution to
understanding the relationship between gender and preferences for leisure
activities. For example, "Relative Frequency for Rows" table most clearly
shows the probability that each gender will prefer a particular leisure
activity.
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 Fall '12
 JagbirSingh
 Probability theory, Frequency distribution, relative frequencies, USA Europe

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