Business Analytics Quiz 1: 23 February 2025 (January 2025 term)

You are given a data of size 1000, which is centred at 50 and has a variance of 25. The median, mode, max and min values are 40, 22, 75 and 1 respectively.Then

When is a “Pie Chart” the best visualisation option for presenting data (choose all that is/are applicable)?

(The following comprehension is purely imaginary)

A restaurant (“Milo’s Kitchen”) has data pertaining to customers ordering three types of starters “Paneer Tikka (PT)”, “Baby Corn Manchurian (BCM)” and “Masala Papad (MP)”. For simplicity assume that the orders for starters is mutually exclusive and that a customer does not order more than one starter. Moreover, the customers who order these starters are predominantly one of the three types of eaters, “Roti Eaters”, “Poori Eaters” or “Rice Eaters” (Note: customers can be “other eaters” as well. Hence, the list is not exhaustive). From past footfall data, it is seen that 25% of the customer’s order “BCM” and another 40% order “PT”. The remaining customers order “MP”. It is observed that,

a. Of the people ordering “BCM”, 30% are “Roti Eaters” and 60% are “Poori Eaters”.
b. For “PT” orders, it is observed that 40% are “Rice Eaters”, 20% are “Poori Eaters” and another 20% are “Roti Eaters”.
c. 50% of the customers who order “MP” are “Rice Eaters” and 40% are “Poori Eaters”
d. “BCM” is never ordered by “Rice Eaters” and “MP” is never opted for by “Roti Eaters”

Assuming any other necessary mutual exclusiveness, and answer the given sub questions.

If 1,000 customers come to the restaurant, how many will/may be “Rice Eaters”? (Note: Enter the answer rounded to two decimal places. For example, if the answer is “10.235”, then enter it as “10.24”. DO NOT ENTER PERCENTAGE VALUES)