To get the minimum value along each column of a 2D array, you use np.min(arr, axis=__).

A quality control analyst has measurements from 100 products across 5 different sensors (a 100×5 array). Explain how you would use NumPy to find: (1) the average reading for each sensor, (2) products where any sensor reading exceeds a threshold, and (3) the sensor with the highest variability. Which axis parameter would you use for each calculation and why?

The NumPy function to calculate the standard deviation of an array is __.

What is the result of np.where(arr > 3, arr, 0) for arr = np.array([1, 5, 2, 8])?

What does np.concatenate([arr1, arr2], axis=1) do?

How do you access the value for key “city” in a dictionary named person?

A while loop continues executing as long as its condition is __.

What is the output of list(range(5))?

Given numbers = [1, 2, 3, 4, 5], what does numbers[-1] return?

In plt.bar(x, y, color=’blue’), what does the color parameter control?