Answer:
Comprehensive explanation:
Let's denote
x -----> the number of days
and
y ----> the remaining minutes for Yuson
We know that
The linear equation in slope-intercept form can be represented as

here
m indicates the slope
b represents the y-coordinate of the y-intercept (starting value)
In this scenario, we have
The slope is defined as
----> negative, as it indicates a decreasing function
----> initial value
substituting the values

Part A:
The probability that all three strangers have their birthdays on a Wednesday is calculated as

Part B:
The probability that the birthdays of the three individuals fall on distinct days throughout the week is calculated as

Part C:
The probability that none of the three have their birthdays on a Saturday is determined by