Your friend said that in order to determine the constant of proportionality, the independent variable (x) should be divided by t
1 answer:
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If 3 = 
, then we know 9 = 
because 9 is 3 squared.
can be simplified to 
So now we know
= ·
Since and have the same base, we can express it as a single term by adding the exponents together.
So the answer is C)
So now we know
Since
So the answer is C)
Answer:
(c)approximately Normal, mean 112, standard deviation 1.414.
Step-by-step explanation:
To solve this problem, we have to understand the Central Limit Theorem
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation
, a large sample size can be approximated to a normal distribution with mean
and standard deviation
.
In this problem, we have that:
Using the Central Limit Theorem
The distribution of the sample mean IQ is approximately Normal.
With mean 112
With standard deviation
So the correct answer is:
(c)approximately Normal, mean 112, standard deviation 1.414.