If you want to find the median (and in future, please remember to ask the
detailed question in the message body, not the subject line), then you need
to calculate the cumulative distribution, & see where that reaches 50% of
the population.
--
David Biddulph

"Samirkc" wrote in message
...
How can I calculate descriptive statistics for the following frequency
distribution?
Age Group Frequency
15-20 59
20-25 197
25-30 263
30-35 235
35-40 142
40-45 60
45-50 21