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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25
Create a statistical question about the ages of your classmates.
"What are the ages of students in my class?"
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boom
Lose 50 points!
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rocket
Go to first place!
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gift
Win 10 points!
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lifesaver
Give 15 points!
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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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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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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
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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20
What is the overall shape of a data distribution?
It describes the pattern the data makes (e.g., symmetric, skewed left or right, uniform, or bell-shaped).
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eraser
Reset score!
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magnet
Take 10 points!
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rocket
Go to first place!
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banana
Go to last place!
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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
What is a statistical question?
A statistical question is one that can be answered by collecting data and expects variability in the answers.
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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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20
How does anticipating variability help in answering a statistical question?
It helps us understand that there will be a range of answers, and we can plan to summarize the data using appropriate tools like mean, median, or data displays.
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15
What information can you get from a box plot?
A box plot shows the minimum, lower quartile, median, upper quartile, and maximum. It helps visualize spread and symmetry of the data.
