Answer:
A
Step-by-step explanation:
The fraction for probability is expressed as...
(number of desired outcomes)/(total number of possible outcomes)
Great, you know that. no need to ask more.
Answer:

Step-by-step explanation:
From the question we are told that
Sample mean 
Standard deviation 
Probability of 
Generally the equation for
is mathematically given as


Therefore The probability that a randomly selected truck averages fewer than 10 miles per gallon

X^2 - 8x + 13 = 0
subtract 13 from both sides
x^2 - 8x = -13
-8/2 = -4, (-4)^2 = 16, add 16 to both sides
x^2 - 8x + 16 = -13 + 16
factor the left side
(x - 4)^2 = 3
Answer:
168
Step-by-step explanation: