Need help understanding how to solve D and E Please show how

****Need help understanding how to solve D. and E. Please show how you got the answers. Thank you

A sample of 11 individual shows the following montly incomes. What would be a representative measure of central locationh for the above data? Explain Determine the mode. Determine the median. Deteremine the 60th percentile. Drop the income of individual number 11 and compute the standard deviation for the first 10 individuals.