Answer: 0.001
Step-by-step explanation:This is a combination problem, so we need to calculate the combination of 7 choose 5, and then multiply by the probability of each event:
Combination of 7 choose 5:
C(7,5) = 7! / (5! * 2!) = 7*6/2 = 21
This value means that we have 21 different possibilities of the 5 days we want being allocated in the 7 days
Now, the probability of each event is:
5 days playing the song: (0.15)^5
2 days not playing the song: (0.85)^2
So, the final probability is
P = C(7,5) * (0.15)^5 * (0.85)^2 = 0.001
Answer:
C and D
Step-by-step explanation:
C. 7 ÷ <u>9</u> = 7/9
D. <u>9</u> ÷ 1/9 = 9 x 9/1 = 81
Actually they want you to simplify the problem.
The problems answer is:
30 goes into 15; 2 times.
Final Answer: 2
1, 4, 13, 40, 121, 364, 1,093, 3,280, 9,841, 29,524, 88,573.
Hoped this helped :)