Main idea: You are given 30 pieces of data. You will then use the data to make a grouped frequency distribution, a frequency histogram, and frequency polygon, find the mean, median, mode, range, and standard deviation.

              81          53          69          52          76          64          87          85          75              82         

              86          46          62          73          77          87          65          57          95              73         

              43          83          44          52          63          57          52          92          77              63

1. Using the data, find the mean, median, mode, range, and standard deviation. (Do not group the data for these calculations) Show all your work.

2. Using all of your original data, construct a grouped frequency distribution. The grouped frequency distribution needs at least 4 intervals and each interval must have the same range and no overlap. Begin with the interval 40-49.

Interval	Tally	Frequency
40-49	3
50-59	6
60-69	6
70-79	6
80-89	7
90-99	2

3. Using the grouped frequency distribution, draw a bar graph and histogram.

4. Complete the table:

Interval	Frequency	Relative Frequency	Degrees of a Circle
TOTAL		100%	360®

5. Display your data on a circle graph.

6. Write a few paragraphs telling what your survey results show. How are the measures of Central Tendency the same? How are they different? How do your answers change when analyzing raw data versus data in a frequency distribution?