Quiz 15/10/2025

What does this return?

def x(data)

z=max(data)-min(data)

return(z)

(a)  

For getting 3rd, 4th and 5th row of a datafile "df" in python programming, we can write

• df.loc[2,3,4]

• df.loc[3,4,5]

• df.iloc[3,4,5]

• None of the above

The extension of the file name generated from the following program is

In [1]: import numpy as np

In [2]: a = 3.2

In [3]: np.save(‘data',a)

• .h5

• .pdf

• .npy

• .txt

What is the output of following program?

In [1]: import numpy as np

In [2]: x = np.array([1,2,3])

In [3]: y = np.array([4,7,9])

In [4]: z = np.vstack((x,y))

In [5]: print np.shape(z)

• (2, 3)

• (1, 3, 5)

• (1, 3, 9, 10)

• (3, 2)

Which Seaborn plot is best for showing the frequency of occurrences for each category in a categorical variable?

• Count Plot

• Line Plot

• Rug Plot

• Pair Plot

Which Seaborn plot helps visualize pairwise relationships between multiple numerical variables in a dataset?

• Pair plot

• Relational plot

• Swarm plot

• Cluster map

How do you customize the color of bars in a bar plot in Matplotlib?

• bar_color parameter in bar()

• color parameter in bar()

• set_color() method

• customize_color() method

What is the correct way to add a title to a Matplotlib plot?

• add_title("My plot")

• set_title("My plot")

• title("My plot")

• plot_title("My Plot")

How do you plot a simple line graph using Matplotlib in Python?

• plot(x,y)

• lineplot(x,y)

• draw_line(x,y)

• create_line_graph(x,y)

Given a pandas series, series_data, which of the following will create a histogram of series_data and align the bin edges with the horizontal tick marks?

• • count, bin_edges = np.histogram(series_data)

    • series_data.plot(kind=’hist’, xticks = count, bin_edges)

• • count, bin_edges = np.histogram(series_data)

    • series_data.plot(kind=’hist’, xticks = count)

• • count, bin_edges = np.histogram(series_data)

    • series_data.plot(kind=’hist’, xticks = bin_edges)

• • series_data.plot(kind=’hist’)