Answer:
The answer is attached to the picture
Number of students = 26
Number of students without siblings = 4
⇒ Number of students with at least one siblings = 26 - 4 = 22
Number of students with brothers = 17
Number of students with sisters = 7
⇒ Number of students with both a brother and a sister = 17 + 7 - 22 = 2
P(student has a brother, given that they have a sister) = 2/7
Answer: 2/7
Answer:
<em>Answer is</em><em> </em><em>imaginary</em><em> </em><em>root</em><em>s</em>
Step-by-step explanation:

On solving the above mentioned equation we get some imaginary values.
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