The shape of a normal distribution is

a. skewed left

b. skewed right

c. straight line

d. a bell curve

D. Bell Curve

Step-by-step explanation:

Think about it like a test on a quiz. Let's say for the sake of the students, that most of the pupils got a score of 80. On the distribution, this would be the high point. Of course, less people got a 50 or 100, so these would be low points. This would create a kind of hill, or slope, which comes back down. This is also called a bell curve in many cases.

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175