Mathematics
Mathematics
Problem
The daily sales (in ₹ thousand) of a kiosk last week were 8, 12, 12, 15, 18, 20 and 20. If an additional day with sales of ₹20 thousand is included, what will happen to the range of the data? a) It will decrease by ₹4 thousand. b) It will increase by ₹2 thousand. c) It will remain the same. d) It will become ₹0 thousand.Intuitive explanation
The range measures spread by finding the difference between the largest and smallest values in a dataset. Here, you need to check whether adding a new data point changes either the maximum or minimum—if it doesn't affect both, the range stays the same. Since 20 is already the highest value in the original data, including it again won't shift the boundaries of your dataset.
Intuitive explanation
The range measures spread by finding the difference between the largest and smallest values in a dataset. Here, you need to check whether adding a new data point changes either the maximum or minimum—if it doesn't affect both, the range stays the same. Since 20 is already the highest value in the original data, including it again won't shift the boundaries of your dataset.