Grouped Data ...
height interval interval mean # of students
The table at right is a frequency
153.5 to 160.5 157 5
distribution table that shows the
160.5 to 167.5 164 16
heights of 100 Senior 4
167.5 to 174.5 171 43
students. The students are
grouped into suitable height 174.5 to 181.5 178 27
groups in 7 cm. intervals. 181.5 to 188.5 185 9
Total 100
Determine the mean, median, mode, range, and standard deviation
for the student heights.

Frequency and Probability Distributions ...