Register
A box contains 10 marbles. 7 arbles. 7 of which black and 3 drawn after the other without replacement. Find the probability of getting i). a red , then a black marble ii). Two black marbles​
114k views
15 votes
A box contains 10 marbles. 7 arbles. 7 of which black and 3 drawn after the other without replacement. Find the probability of getting i). a red , then a black marble ii). Two black marbles​

User Dmitry Gusev
by
7.6k points

1 Answer

9 votes

Answer:

5/10

Explanation:

the 7 out of 10 and the 1 out of 10 combine and make 5 out of 10

User Sunil Rawat
by
6.8k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.6m questions

11.2m 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
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)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!