Answer:
0.0970
Step-by-step explanation:
Red marbles, R= 5
White, W = 9
Blue, B = 7
Total = (5 + 9 + 7) = 21
Selecting 3 marbles without replacement :
Probability that all marbles are the same
P(RRR) or P(BBB) or P(WWW)
(5/21 * 4/20 * 3/19) + (7/21 * 6/20 * 5/19) + (9/21 * 8/20 * 7/19)
0.0075187 + 0.0263157 + 0.0631578
= 0.0969922
= 0.0970
Answer:
1: 31.5. 2: 5. 3: 4.6 4: 45
Answer:
7 / 99
Step-by-step explanation:
7 / 99 = 7 ÷ 99 = 0.07070707...
Answer:
d = -1/2
Step-by-step explanation:
I got a negative answer, I'm not sure if that's what you are looking for. But Hope this helps!