Object Oriented Programming

Here, you will be creating a class CustomData that can be used to create an instance as follows:

dataset = CustomData([1,3,5,7, ...])

Do NOT use ANY library or package for this part. Use built-in Python operations only.

Tasks 1: Parent Class

Complete the constructor, which takes in a data_list

Complete method 1: calculate_mean that calculates the unweighted mean or average

Complete method 2: calculate_sd that calculates Population Standard Deviation

Hint: Each item here can be implemented in just 1 line of code!

class CustomData: def __init__(self, data_list): """ Constructor """ # YOUR CODE HERE # DO NOT USE ANY PACKGE

def calculate_mean(self): """ Calculates the mean of the data """ # YOUR CODE HERE # DO NOT USE ANY PACKGE

def calculate_sd(self): """ Computes Population Standard Deviation """ # YOUR CODE HERE # DO NOT USE ANY PACKGE

Task 2: Test the Parent Class

You must test the class by calling the method on the instantiated population_data object.

########################## DO NOT EDIT ########################## DATA = np.random.normal(0, 1, 1000) population_data = CustomData(DATA) #################################################################

# Calcuate the mean of population_data object # YOUR CODE HERE

# Calcuate the Population Standard Deviation of population_data object # YOUR CODE HERE

Task 3: Child Class and Override Method

Now, create a child class CustomSample. All attributes and methods should be the same. However, change (override) the calculate_sd method such that it now computes Sample Standard Deviation instead.

## Create the CustomSample class ## DO NOT USE ANY PACKAGE # YOUR CODE HERE

Task 4 Test the Child Class

You must test the class by calling the method on the instantiated sample_data object.

########################## DO NOT EDIT ########################## sample_data = CustomSample(DATA) #################################################################

# Calcuate the mean of sample_data object # YOUR CODE HERE

# Calcuate the Sample Standard Deviation of sample_data object # YOUR CODE HERE

Task 5

Compare the mean and standard deviation between population_data and sample_data objects. Describe how they are similar (same) and how they are different.

YOUR ANSWER HERE: