Asurvey of 28 teens in a community theater group found that 12 teenagers, in total, had a sister, 7 teenagers, in total, had a brother, and 3 teenagers had both a sister and brother. what is the probability that a randomly selected teenager who has a sister also has a brother? 14 37 328 728

Answer is .

Step-by-step explanation:

Total teens = 28

12 teenagers, in total, had a sister

7 teenagers, in total, had a brother

3 teenagers had both a sister and brother.

To get the required probability, we will consider the following two details:

3 teenagers have both a brother and sister  and 12 have a sister.

Therefore, the probability that a randomly selected teenager who has a sister also has a brother will be =

Answer is .

complete the steps to find the area of the trapezoid.

area of rectangle = 256   square units

area of triangle 1 = 24  square units

area of triangle 2 = 16  square units

area of triangle 3 =   96 square units

area of trapezoid = 120  square units

step-by-step explanation: