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dimaraw [331]
3 years ago
5

A test has multiple choice questions with 3 choices for each answer; only one answer is correct for each question. Suppose a stu

dent guesses the answer to each question. Assuming the guesses are independent, find the probability that the student will guess correctly when answering two questions.
Mathematics
1 answer:
posledela3 years ago
4 0

Answer:

a

Step-by-step explanation:

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ASHA 777 [7]

From what you’re given, you know that , for some constant a. From that, you know that –2 + a = –b, and that –2a = b.

Multiply that second equation by –1, and then you can do some solvin’.

–2 + a = –<span>b
</span>2a = –b

–2 + a = 2<span>a
</span>–2 = a



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