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### 27 Cards in this Set

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 The type of sampling where a system is used for choosing which people are polled. Systematic The number that appears the most in a set of data is called the what? Mode The box in a box-and-whisker plot represents what percent of the data? The middle 50% The type of sampling where anyone within the population has the same chance of being selected. Random What type of graph is used to represent changes over time? Line Graph What is a Line of Best Fit also called? trend line The average is also called the what? Mean A circle graph represents what percent? 100% In a pictograph, if the graphic symbol represents 10 cats, how many cats would 6 and a half graphic symbols represent? 65 If a table shows the following tallies: llll Then what is the frequency? 4 A type of bar graph that shows intervals of data is called what? A histogram What values do the whiskers in a box-and-whisker plot reach to? The min and max What type of sampling is performed because it is easy to do? Convenience What statistical measure is NOT a measure of central tendency? Range What is each slice of a circle graph called? sectors How many degrees are in a circle? 360 degrees A frequency table uses what markings to record amounts? tallies What is the middle number in a set of data called? Median How do you find the median if there are 2 middle numbers? Find the average of those 2 numbers by adding them together and dividing by 2. The type of sampling is it when an entire group within a group is used? Cluster Can all scatter plots have a line of best fit? NO Points that rise from left to right have show what type of correlation? Positive What is the piece of data that does not fit in with the other pieces of data? For Example: 2,3,4,7,9,426 Outlier How many quarters are represented by a box-and-whisker plot? 4 What represents the median in a box-and-whisker plot? The line that cuts the box. When volume falls over time, then volume and time have what type of correlation? Negative Describe how to find the mean. Add all the numbers and divide by the amount of numbers.