Consider the following frequency distribution:
classes frequenceies
1 to less than 3 2
3 to less than 5 5
5 to less than 7 12
7 to less than 9 6
1.calcuate the Mean , and the Standard Deviation of this distribution, interpret your result
2. find the class that includes the Median
3. what percent to the abservations are less than 7?