Unit 1 Statistics

2. is the middle of a sorted list of numbers: place the numbers in value order and find the middle.
4. Absolute Deviation is the average distance each number in a data set is from the mean.
8. Quartile (Q1) is the median of the lower half of the value
10. Plot is a visual display in which each piece of data is represented by a dot above a number line, showing the frequency of each data value.
11. Plot a visual display that shows the five-number summary of a set of data.
13. Range is the distance between the quartile 3 and quartile 1 of a data set.
16. is the number that occurs in a data set the most amount of times.
17. is the distance between the highest and lowest data point.
18. is the highest part on the graph. (Highest frequency)

1. a graph is symmetrical when one half is a mirror image of the other half.
2. is the average of the numbers: add up all the numbers, then divide by how many numbers there are.
3. right means the tail of the distribution is longer on the right side than of the graph.
5. is where data points are grouped together.
6. is a value that “lies outside” (is much smaller or larger than) most of the other values in a set of data.
7. Questions are questions that have more than one possible answer.
9. is a graphical representation that organizes a group of data points into user-specified ranges and is made of bars of equal width.
11. Graph is the graphical representation of numerical data by rectangles (or bars) of equal width and varying height.
12. is a section in a dataset or graph where no observations or values exist.
14. Quartile (Q3) is the median of the upper half of the values
15. left means the tail of the distribution is longer on the left side of the graph.