1. Which of the following can have more than one value?
2. Which of the following is obtained by taking the difference between the maximum and minimum values of a data set?
3. What is the sample variance of the following data: 2, 4, 6, 8, 10 and 12?
4. What is the mode value when all values in the data set are different?
5. When the data are categorized as, for example, socio economic status (Low, Middle, Upper), the most appropriate measure of central tendency is?
6. The values of the standard deviation and variance are
7. Which of the following divides a data set into four equal parts?
8. A statistic that denotes the number of standard deviations a data value is below or above the mean is called
9. The mean of the standard normal distribution is
10. Suppose a marathon player covers 7 kilometers with a speed of 30 kilometer per hour in a race for his one-way trip. During the return trip, his speed decelerates to 25 km per hour. Find the average time of the marathon player for his two-way trips in a race.