Answer is C or 21 because you have to plug in 5 into the equation
P(3 reds out of 8)
<span>= 8C3 * [15 / (15 + 5 + 30)]^3 * [(5 + 30) / (15 + 5 + 30)]^(8 - 3) </span>
<span>= 8C3 * 0.3^3 * 0.7^5 </span>
<span>= 0.25412184 </span>
<span>= 25.4% </span>
<span>=~ 0.3</span>
Answer:
d
Step-by-step explanation:
1) you have to find the difference between pipe A and pipe B, which is 6.40.
23.55-17.15=6.40
2) after finding the difference. You will take that difference and put it out of 23.55 and multiply by 100 to get your percentage. As so:
(6.40/23.55)(100)= 27.176% which rounds to 27% as a whole number.
Your answer is 27%. Hope that helps!
This is the 2nd time I've posted this answer... not sure why it didn't go through the first time. Let me know if you have questions. :)
