A model that uses a system of symbols to represent a problem is called
a. mathematical.
b. iconic.
c. analog.
d. constrained.
Question 2
The miles per gallon obtained by the 1995 model Q cars is normally distributed with a mean of 22 miles per gallon and a standard deviation of 5 miles per gallon.
a. What is the probability that a car will get between 13.35 and 35.1 miles per gallon?
b. What is the probability that a car will get more than 29.6 miles per gallon?
c. What is the probability that a car will get less than 21 miles per gallon?
d. What is the probability that a car will get exactly 22 miles per gallon?