Research Statistics -
Directions: Answer the questions in the order given below; write the questions numbers for each answer. Mark your answers clearly. Show all the computations. Include the formula and show all the steps.
1. Given below are the scores obtained by 5 students on a test. Compute the median, mode, mean, range, variance and standard deviation for the scores.
Show all the computations.
X
2
3
5
5
10
Mode =
Median =
Mean =
Range =
Standard deviation =
Variance =
2. Which measure of central tendency (mean, median or mode) is most appropriate for income data and why? Give a clear explanation for your decision.
3. What are the major differences between standard deviation and variance?