From the example above, we can see that there is a high correlation between the hours of learning and the grade.
Also, we can see that:

the mean for the learning hours is 4.6
the median for the learning hours is 4.0
the standard deviation for the learning hours is 3.2

NumPy also has some basic functions like np.sort() and np.sum() which exists in the basic Python lists, too. An important note here is that NumPy enforces a single type in an array and this speeds up the calculations.

Exercises

I have prepared some exercises including subsetting, element-wise operations, and basic statistics. If you want, you can try to solve them.

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Final Words

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