| Questions |
| Questions |
| 1 | In Statistics, Dispersion is: | ||
| A) | The range of a distribution | ||
| B) | The mean of a distribution | ||
| C) | The extent to which a distribution is squeezed or stretched | ||
| D) | The middle value of a distribution | ||
| 2 | Examples of Dispersion include: | ||
| A) | The median | ||
| B) | The mode | ||
| C) | The variance | ||
| D) | The whole set of numbers in a distribution | ||
| 3 | The range is: | ||
| A) | The middle value of a set of numbers | ||
| B) | The initial value of a set of numbers | ||
| C) | The final value of a set of numbers | ||
| D) | The difference between the largest and the smallest | ||
| 4 | One of the main advantages of the Range is: | ||
| A) | Easy calculation and relatively easy to understand | ||
| B) | It is always required | ||
| C) | It is seldom required | ||
| D) | It is never required | ||
| 5 | One disadvantage of the Range is: | ||
| A) | It is very difficult to calculate | ||
| B) | It is rarely required | ||
| C) | It is based on only two of the individual values and takes no account of all those in between | ||
| D) | It is a very large number | ||
| 6 | In statistics, standard deviation is: | ||
| A) | The least important measures of dispersion | ||
| B) | The most important measure of dispersion | ||
| C) | Of middle importance in statistics | ||
| D) | Not important at all | ||
| 7 | Standard Deviation is defined as: | ||
| A) | The least number in a group of numbers | ||
| B) | The middle value in a group of numbers | ||
| C) | The square root of the variance | ||
| D) | The largest minus the smallest number in a group of numbers | ||
| 8 | The Coefficient of variation is: | ||
| A) | A standardize measure of dispersion of a probability distribution or frequency distribution | ||
| B) | Another method of showing variance | ||
| C) | Very similar to the range of a distribution | ||
| D) | Very similar to the mean of a distribution | ||
| 9 | A Symmetric Distribution is one: | ||
| A) | Where the left side and the right side of a distribution are different | ||
| B) | Where the left side of the distribution mirrors the right side | ||
| C) | Where the left side and the right side of a distribution are very similar | ||
| D) | Where the left side and the right side of a distribution is not similar at all | ||
| 10 | A distribution which has a tail drawn out to the right is: | ||
| A) | Positively skewed | ||
| B) | Negatively Skewed | ||
| C) | Not Skewed | ||
| D) | Heavily Skewed | ||