Direction: Answer the following and write your answer in fraction on the space provided A bowl contains 15 chips numbered 1 to 15. If a chip is drawn randomly from the bowl, what is the probability that is

______a. 7 or 157
_______b. 5 or a number divisible by 37

pasagot po salamat​


Sagot :

Answer:

Step-by-step explanation:

a. I think it's "7 or 1,5,7"

when we use "or" it means the union of two sets

P(A U B)=P(A)+P(B)

= [tex]\frac{1}{15} + \frac{3}{15} = \frac{4}{15}[/tex]

b. I think it's "5 or a number divisible by 3 or 7"

P(A U B)=P(A)+P(B)

there are 5 numbers divisible by 3 from 1-15, and 2 are divisible by 7 from 1-15, so

[tex]\frac{1}{15} +\frac{5}{15} +\frac{2}{15} = \frac{8}{15}[/tex],

I am not sure if it is really "divisible by 3 or 7" or "divisible by 3 and 7", the correctness of my answer varies with how you wrote your question.