Do the range,variance and standard deviation part Calculate following statistics to following data: Mean Median Mode Range Variance Standard deviation [indicates with mean: if the data distribution is normal, 68% of the data is within 1 standard deviation; 95% is within 2 standard deviations, 99.7% is within 3 standard deviations]   Visualise the distribution (polygon/ line chart).   Please give an interpretation to your results!   Distribution of grades in the study course ”Marketing”   Grades, xi Number of students, fi 1 0 2 0 3 1 4 2 5 4 6 6 7 10 8 5 9 3 10 1

Definition Definition Measure of central tendency that is the value that occurs most frequently in a data set. A data set may have more than one mode if multiple categories repeat an equal number of times. For example, in a data set with five item—3, 5, 5, 29, 473—the mode is 5 because it occurs twice and no other value occurs more than once. On a histogram or bar chart, the element with the highest bar represents the mode. Therefore, the mode is sometimes considered the most popular option. The mode is useful for nominal or categorical data (e.g., the most common color car that users purchase), but it is problematic for continuous data because it is more likely not to have any value that is more frequent than the other.