Answer: a) 0.333, b) 0.333 and c) 0.9986.
Step-by-step explanation:
Since we have given that
Average = 3 counts per minute = λ
a) What is the mean time between counts ?
Since it follows a Poisson Process, So,
![E[x]=\dfrac{1}{\lambda}=\dfrac{1}{3}=0.333](https://tex.z-dn.net/?f=E%5Bx%5D%3D%5Cdfrac%7B1%7D%7B%5Clambda%7D%3D%5Cdfrac%7B1%7D%7B3%7D%3D0.333)
(b) What is the standard deviation between counts ?
(c) If it is an average of 3 counts per minute, find the value of such that .
If the average = 3 counts per minute.
Then, 
Hence, a) 0.333, b) 0.333 and c) 0.9986.
Answer:
B
Step-by-step explanation:
Answer:
95
Step-by-step explanation:
If the mean is 400 and the standard deviation 12.5. It means that a range between 375 and 425 is the mean +- 2 standard deviations
400 - 12.5*2 = 375
400 + 12.5*2 = 425
Which means the probability is 95%
When you are looking for +- 1 deviation standard the probability is 68, and for +- 3 the probability is 99.7
There is a more complex explanation based on Z, but assuming you are only applying 68-95-99.7 rule this should be enough.
Hello
if m s : sum and p : <span> product
the </span><span> quadratic equation is : x²-sx+p=0
s = 5 p=-24
x²-5x-24 = 0 </span>
Answer:
i believe the correct one is the second one
