# 2.1 Why do we need to group data in the form of a frequency table? Explain briefly. 2.2 How are the. 1 answer below »

2.1 Why do we need to group data in the form of a frequency table? Explain briefly. 2.2 How are the relative frequencies and percentages of categories obtained from the frequencies of categories? Illustrate with the help of an example. 2.3 The following data give the results of a sample survey. The letters A, B, and C represent the three categories. AB B A C B C C C A CB C A C C B C C A AB C C B C B A C A a. Prepare a frequency distribution table. b. Calculate the relative frequencies and percentages for all categories. c. What percentage of the elements in this sample belong to category B? d. What percentage of the elements in this sample belong to category A or C? e. Draw a bar graph for the frequency distribution

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