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