You put the names of all the students in your class in a paper bag. There are 19 boys and 12 girls. If you draw a name at random, what is P(boy’s name)?


A.19/20**
B.19/31
C.12/19

A.19/12********

Yeah 12/19

NO, there are 31 names in the bag, 19 of those are boys' names.

so prob(pick a boy's name) = 19/31

To find the probability of drawing a boy's name from the bag, you need to know the total number of names in the bag and the number of boys' names.

Given that there are 19 boys and 12 girls, the total number of names in the bag is 19 + 12 = 31 (total students in the class).

The probability of drawing a boy's name is equal to the number of boys' names divided by the total number of names in the bag.

Therefore, P(boy’s name) = 19/31.

Option B, 19/31, is the correct answer.