Question

Define a function named plot serial numbers to make a histogram of any dataframe of serial numbers. It should take one argument, a dataframe like obs with one column named serial number. It should plot a histogram of the values in the column using bins of width 10 ranging from 1 to 170 but return nothing. Also, the plot must display appropriate x-label, y-label, and title. Then, call that function to make a histogram of the serial numbers in the column serial number of the dataframe obs.

A. True
B. False

Answer 1

A histogram is a graphical representation of the distribution of a dataset. You can create a function in Python to make a histogram of serial numbers in a dataframe using the matplotlib library. The function should take a dataframe with a column named 'serial number', plot a histogram with appropriate labels and title, and return nothing.

Step-by-step explanation:

A histogram is a graphical representation of the distribution of a dataset. It consists of contiguous boxes, with a horizontal axis representing the values of the dataset and a vertical axis representing the frequency or relative frequency. A histogram can provide insights into the shape, center, and spread of the data.

To create a function in Python to make a histogram of serial numbers in a dataframe, you can use the matplotlib library. Here's an example:

import matplotlib.pyplot as plt

def plot_serial_numbers(df):
plt.hist(df['serial number'], bins=range(1, 171, 10))
plt.xlabel('Serial Number')
plt.ylabel('Frequency')
plt.title('Histogram of Serial Numbers')
plt.show()

To call this function on a dataframe named 'obs', you would simply write:

plot_serial_numbers(obs)