A brother and a sister are in the same math class. There are 8 boys and 10 girls in the class. One boy and one girl are randomly chosen. What is the probability that the brother and sister are chosen? Write your answer as a fraction in simplest form.
The probability is

Answer

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Answer

\(\boxed{\frac{1}{80}}\) is the probability that the brother and sister are chosen

Steps

Step 1 ：Find the total number of ways to choose one boy and one girl: \(8 \times 10 = 80\)

Step 2 ：There is only 1 way to choose the brother and sister

Step 3 ：Calculate the probability: \(\frac{1}{80}\)

Step 4 ：\(\boxed{\frac{1}{80}}\) is the probability that the brother and sister are chosen