Answer:
1/4
Step-by-step explanation:
There is a total of 1+4+3 marbles = 8 marbles
P( blue ) = blue /total = 4/8 = 1/2
He replaces it
There are still 8 marbles in the bag
P(blue 2nd draw) = blue /total = 4/8 = 1/2
P(blue,replace, blue) = 1/2*1/2 = 1/4
I see your profile everywhere, and the answer is Right scalene Pythagorean triangle.
1. 6x10^6
2. 5.4x10^-6
3. 6x10^-1
4. 9x10^3
5. 6.7x10^1
6. 2x10^6
7. 2x10^1
8. 71,000
9. 4.89x10^4
10. 9x10^7
11. 63
11. 3.3
12. 3
13. 2.16x10^4
14. 4.2x10^3
15. 015
16. 4.8x 10^0
hope it helps!
-6
Take a couple of differences and see:
11 -17 = -6
5 -11 = -6
The common difference is -6.
12/52 = 1/4 chance.
