In a class of 28 students, 11 have a brother and 9 have a sister. There are 2 students
who have a brother and a sister. What is the probability that a student has a sister
given that they have a brother?
Can someone help me

Respuesta :

Answer:

7%

Step-by-step explanation:

well since only 2 students have both a brother and a sister it would be 2/28

which as a percentage is 0.07142857142 × 100 = 7.14285714286

Answer:

x=3

Step-by-step explanation: