Question

in a class of 30 students,there are 12 gals and 2of the are short seighted,six ofbthe boys are not short seighted.if a student is choosen at random.find the probability that the student is......a boy or a short seighted​

Answer 1

Probability of boy is 3/5 and probability of short sighted is 4/15

Answer 2

Answer:

Probability of boy is 3/5 and probability of short seighted is 7/15

Step-by-step explanation:

As no.of boys is total students - no. of girls

30 - 12= 18

18 of them are boys

so probability of boys is 18/30 = 3/5

As given six of boys are not short seighted. So total number of short seighted are (18 - 6) + 2 as from girls 2 are short seighted

total number of Short seighted=14

probability of short seighted= 14/30=7/15