Answer to Question #16032 in Statistics and Probability for Vlatko

Question

Let is observed the height (cm) of the students in a school, and sample with size of 40 students is consider:
165,185,172,151,164,151,169,176,166,178,178,166,158,
165,151,172,184,174,158,172,164,151,169,176,166,178,
176, 158, 152,165,172,186,174,158,184,170,152,164,161,166.
After grouping the data into 6 class intervals with equal width:
a) Make a summary table for the grouped frequency, grouped relative frequency and “less than” grouped cumulative frequency distribution for the given data.
b) Construct a frequency histogram and a “less than” grouped cumulative relative frequency ogive for the given data.
c) Find the approximate arithmetic mean, approximate mod, approximate median, approximate variance and approximate standard deviation for the sample.