Statistics Graphs and Statistical Presentations

University:
Bradley University
Course:
MTH 325 | Probability and Statistics I
Academic year:

2022
Views:

301

Pages:

4
Author:

grosikesf4

GRAPHS & STATISTICAL PRESENTATIONS REPRESENTING DATA VISUALLY Visual representation of data includes multiple different types of charts, some of the most common are: ● Pie charts ● Line charts ● Bar charts ● Bubble charts PIE CHART - BAR CHART - LINE CHART - BOX AND WHISKER PLOTS Also called a box plot—displays the five-number summary of a set of data. The five-number summary includes the minimum, first quartile, median, third quartile, and maximum. In a box plot, we draw a box from the first quartile to the third quartile. A vertical line goes through the box at the median. Example - STEM-AND-LEAF DIAGRAMS A table used to display data. The 'stem' on the left displays the first digit or digits. The 'leaf' is on the right and displays the last digit. Example - 543 and 548 can be displayed together on a stem and leaf as 54 | 3,8. SCATTER PLOTS AND LINE GRAPHS A scatter plot is a graph used to determine whether there is a relationship between paired data. In many real-life situations, scatter plots follow patterns that are approximately linear. If y tends to increase as x increases, then the paired data is a positive correlation. Example - LINE GRAPHS A visual comparison of how two variables—shown on both the x- and y-axes—are related or can vary with the other. It shows related information by drawing a continuous line between all the points on a grid. Example - PIE CHARTS A circular statistical graphic, which is divided into slices to illustrate numerical proportion. In a pie chart, the arc length of each slice (and consequently its central angle and area), is proportional to the quantity it represents. Pie charts are generally used to show percentage or proportional data and usually the percentage represented by each category is provided next to the corresponding slice of pie. Pie charts are good for displaying data for around 6 categories or fewer. Example -