What is the importance of variance in statistics?
Variance measures how much data points differ from the mean, indicating data spread and reliability.
Why is it crucial for data analysis?
It helps in understanding data distribution, making predictions, and assessing risk in various fields.
Can you give an example of how variance is used in real life?
Sure! In finance, variance helps investors assess the risk of an asset's return over time.
How does variance relate to standard deviation?
Standard deviation is the square root of variance, providing a measure of spread in the same units as the data.
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