Sendstars is a package delivering company that recently made a study on its customer retention and service renewal metrics. They found that most customers defected from using Sendstars' services due to customer dissatisfaction stemming from delivery personnel being rude or ill-mannered. To curb this issue, Sendstars gave special training to its employees in customer service.
Which of the following data mining approaches did Sendstars employ when they decided to train their employees in customer care based on the study?

A. association
B. classification
C. cause-and-effect modeling
D. reduction

C. Cause and Effect Modelling.

Explanation:

Data Mining is a technique which aims at obtaining important and useful information in a stockpile of data. This in turn would prove useful in making predictions. It would also inform present decisions.

The Cause and Effect modelling approach explains that for every given action ( effect ), there was a prompting factor ( cause ).

In the case of Sendstars Company, the downward spiral in customer retention was as a result of ill -mannered staff. This effect, prompted the decision to have the employees trained on customer service.

Following are the program can be defined as follows:

def print_popcorn_time(bag_ounces):#defining a method print_popcorn_time  

#defining a conditional statement  

   if bag_ounces < 3: #check value if bag_ounces is less then 3

       print("Too small") #print message

   elif bag_ounces > 10: # check another condition that bag_ounces is greater then 10

       print("Tool large") #print message  

   else: # else part

       bag_ounces = bag_ounces * 6 # multiply the bag_ounces value by 6  

       print(bag_ounces,"second") #print message

print_popcorn_time(2) # method calling

Output:

Too small

Explanation:

In the above program, a method "print_popcorn_time" is declared, which accepts a parameter, that is  "bag_ounces", inside the method, a conditional statement is used, which can be described as follows:

In the condition statement first, if block is used, that check variable "bag_ounces" value is less then 3, if this condition is true, it will print a message, that is "Too small", otherwise it will go to elif block. In this block, it will check the variable "bag_ounces" value is greater then 10, if this condition is true, it will print a message, that is "Too large".If both the above conditions are false so, it will go to else block, in this block variable "bag_ounces" value is multiplied by 6, and prints its value in seconds.