I thought variance was about the average of squared differences, but I can't recall if that means it's just about the central value or the spread overall.
I remember practicing a question that asked about the difference between variance and standard deviation. I think variance relates to how values differ from the mean.
The key here is that variance quantifies the degree of variability in the dataset. A higher variance means the values are more spread out, while a lower variance indicates they are clustered closer to the mean. I'm pretty confident D is the right answer.
Okay, I remember learning that variance is calculated by taking the average of the squared differences between each value and the mean. So it's definitely a measure of how dispersed the values are, not just how far a single value is from the extremes.
I feel like option D sounds right, but I’m a bit confused about the wording. Isn’t variance also related to how far individual values are from the mean?
Lynelle
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