Calculate the mode from the following data.

Days of confinement	6	7	8	9	10
Number of patients	4	6	7	5	3

Correct option is D

Solution:
The mode is the value that appears most frequently in the dataset.
In this case, we examine the number of patients for each day of confinement:
6 days - 4 patients
7 days - 6 patients
8 days - 7 patients (highest frequency)
9 days - 5 patients
10 days - 3 patients
Since the highest number of patients is 7, and it occurs for 8 days of confinement, the mode is 8 days.