The median is the middle number when the data is ordered from least to greatest. If thereโs an even number of values, itโs the average of the two middle numbers
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baam
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gift
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fairy
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banana
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5
What is a dot plot?
A simple graph where each data value is shown as a dot above a number line.
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25
Explain how the center of a distribution can help summarize the data.
The center gives us a single value that represents a typical or average value in the data set.
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15
Explain the difference between measures of center and measures of variation.
Measures of center (mean, median) tell where the data tends to cluster. Measures of variation (range, interquartile range, mean absolute deviation) tell how sp
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15
How can you describe the spread of data?
By looking at how much the values differ from each other using range, interquartile range, or mean absolute deviation.
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20
What is the mean absolute deviation?
The mean absolute deviation (MAD) is the average distance between each data point and the mean of the data set. It measures variability.
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5
What are the three key aspects of a data distribution?
Center (where the middle of the data lies) Range (how spread out the data is) Shape (the overall pattern of the data)
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15
Why might you choose median over mean in certain cases?
You might choose the median when the data has outliers or is skewed, because the median is not affected by extreme values.
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15
Why is "How many pets do students have?" a statistical question?
Because different students may have different numbers of pets, so the answers will vary. This variability is what makes the question statistical.
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boom
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shark
Other team loses 25 points!
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rocket
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baam
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5
How do you find the mean of a data set?
Add all the values together and divide by the number of values.
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5
How do you create a histogram?
Group data into intervals (called bins), count how many data points fall into each bin, and draw bars to show those frequencies.
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10
Create a simple dot plot using the following data: 2, 3, 4, 4, 5.
Teacher will decide
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banana
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fairy
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rocket
Go to first place!
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lifesaver
Give 20 points!
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5
What is a measure of center?
A number that represents the middle or typical value of a data set, such as the mean or median.