
a. 9:00 AM is the 60 minute mark:

b. 8:15 and 8:30 AM are the 15 and 30 minute marks, respectively. The probability of arriving at some point between them is

c. The probability of arriving on any given day before 8:40 AM (the 40 minute mark) is

The probability of doing so for at least 2 of 5 days is

i.e. you're virtually guaranteed to arrive within the first 40 minutes at least twice.
d. Integrate the PDF to obtain the CDF:

Then the desired probability is

Answer:
Please check the explanation!
Step-by-step explanation:
Given the equation

As some of the absolute rules are:
NOW, let us solve!
Let us substitute all the table values
Putting x = -4
∵


So, when x = -4, then y = -7
Putting x = -3



when x = -3, then y = -5
Putting x = -2



when x = -2, then y = -3
Putting x = -1



when x = -1, then y = -1
Putting x = 0



when x = 0, then y = -3
Putting x = 1



when x = 1, then y = -5
The graph is also attached below.
Answer:
A triangular scarf is an isosceles right triangle.
Step-by-step explanation:
Given: A scarf is a triangle with two perpendicular sides that are the same length.
We have to name which two terms describe a triangular scarf.
Isosceles triangle is a triangle with length of two of its sides equal.
Right angled triangle is a triangle in which one angle is a right angle.
Given :
The two sides of scarf are perpendicular to each other.
Thus, the angle formed between them is 90°. Hence, right angled triangle.
Also, length of two sides are same, Hence isosceles triangle.
Thus,a triangular scarf is an isosceles right triangle.