Question

There are 35 students in a class in which 20 are boys and 15 are girls. From this students one is chosen as random.what is the probability that the chosen is a : (1) boy ,(2) girl

Answer 1

the probability that the chosen is a
boy-4/7
girl-3/7

Answer 2

Step-by-step explanation:

Total number of students = 35

(i) Let the chosen student be a boy

Number of boys = 20

∴ P ( choosing a boy ) = $\frac{20}{35} = \frac{4}{7}$

(ii) Let the chosen student be a girl

Number of girls = 15

∴ P ( choosing a girl ) = $\frac{15}{35} = \frac{3}{7}$