Register
A bag contains 11 black and 21 gray marbles. A marble is drawn at random. What is the theoretical probability of NOT drawing a gray marble?
8.3k views
2 votes
A bag contains 11 black and 21 gray marbles. A marble is drawn at random. What is the theoretical probability of NOT drawing a gray marble?

User Lejiend
by
8.4k points

1 Answer

3 votes
The probability of not drawing a grey marble is equal to the probability of drawing a black marble...

Probability=number of specific outcomes/total number of possible outcomes...

P(B)=11/(11+21)

P(B)=11/32
User Economy
by
7.1k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.2m questions

11.9m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!