Total units would be: 4+7 = 11
value of 1 unit = 44/11 = 4
Ratio would be: 4(4) & 7(4) = 16 & 28
Since it goes by thousandths (0.001), we can say the values are 2.089 and 2.095.
Answer:

Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean
and standard deviation
, the sample means with size n of at least 30 can be approximated to a normal distribution with mean
and standard deviation 
In this problem, we have that:

So

Answer: It's B
Step-by-step explanation:
<span>mean muμequals=8484 and a standard deviation sigmaσequals=2424</span>