When should I use normal distribution in my data analysis?
You should use normal distribution when your data is continuous, symmetric, and follows a bell-shaped curve.
Can you give me an example of data that fits a normal distribution?
Sure! Heights of adult humans often follow a normal distribution, where most people are around the average height.
What if my data is skewed? Can I still use normal distribution?
If your data is significantly skewed, it's better to use other distributions or transform your data to approximate normality.
How do I check if my data is normally distributed?
You can use visual methods like histograms or Q-Q plots, or statistical tests like the Shapiro-Wilk test to check for normality.
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