You have two outcomes in a true or false test - you can choose option "true" or option "false". The probabolity to guess correct answer for one question is 1/2.
Use the product rule to count the probability getting all five correct answers:
[tex] Pr=\dfrac{1}{2} \cdot \dfrac{1}{2} \cdot \dfrac{1}{2} \cdot \dfrac{1}{2} \cdot \dfrac{1}{2}=\dfrac{1}{32} [/tex].
Answer: The probability that you will get all five correct answers is [tex] Pr=\dfrac{1}{32} [/tex].
