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Based on the box-and-whisker plot, what is the interquartile range of the quantity output per week?
Discrete variables have means that are integer values.
What percentage of the scores is contained in the box of the boxplot?
A measure of central tendency tells us, using a single value, the best representation for an entire set of scores. A measure of variability tells us:
Given the following data set, what is the range of the data?
| xi | Fi |
| 8 | 6 |
| 9 | 0 |
| 10 | 17 |
| 11 | 12 |
Present your result with one decimal value.
A real estate agency in a city keeps track of the number of houses they sell each month in various neighborhoods. They have been analyzing this data to understand the fluctuations and patterns in house sales. After crunching the numbers, they find that the standard deviation of the monthly house sales is 5 houses. In that case, the variance of the sales is: