1. There are two types of statistics which are; descriptive statistics and inferential statistics. Briefly explain the difference between these two and provide example to support your argument. (4 Marks) 2. Biased sample is a situation where the selection of sample does not represent a population. Explain the effect to a business if an organization makes a decision based on the statistics from a biased sample. (2 Marks) 3. The mean weight of five complete computer stations is 167.2 pounds. The weights of four of the computer stations are 158.4 pounds, 162.8 pounds, 165 pounds, and 178.2 pounds respectively. What is the weight of the fifth computer station? 4. Given a set of sample data as follows: (3 Marks) 68 55 79 81 63 82 58 450 62 70 a) Calculate the mean, mode and median for this data. (4 Marks) b) What is the best measure of central tendency for this data? Explain your answer. (2 Marks)