Answer:
x is greater than or equal to nine(since it starts at and includes nine) and belongs to natural numbers(counting numbers)
Step-by-step explanation:
I think there are multiple answers to this but I will just give mine
x is greater than or equal to nine(since it starts at and includes nine) and belongs to natural numbers(counting numbers)
It should be:
-2.7-1.4
-4.1
Answer:
9
Step-by-step explanation:
Divide them.
Answer:
As long as the sample size n is large enough: The average IQ of Americans in the sample will be normally distributed.
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 
So the correct answer is:
As long as the sample size n is large enough: The average IQ of Americans in the sample will be normally distributed.