Given that <span>William guesses random answers for the last
four questions and that e</span><span>ach question has five answer choices.</span><span>
The probability that he gets an answer correct </span>is 1 / 5.
The probability that he did not get an answer correct is 4 / 5.
The probability that he will not get any of the 4 questions correctly is

Therefore, the probability that he gets at least one of the 4 questions correctly is
-0.1 and 1.1 because the probability has to be between 0 and 1
Because this is a trick question therefore that is 12 units cubed so its just 12•11
Answer:
yes, ±2
Step-by-step explanation:
The x-intercepts are found by setting y=0 and solving for x:
x^2/4 = 1
x^2 = 4
x = ±√4
x = ±2
The x-values of interest are -2 and +2.