Answer:
9 , -9, -15, -21
Step-by-step explanation:
6-3x-1=-9
6-3x1=9
6-3x3=-15
6-3x5=-21
Answer:
Mean = 94
Standard deviation = 1.12
The sampling distribution of the sample mean is going to be normally distributed, beause the size of the samples are 80, which is larger than 30.
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, which is also called standard error 
In this problem, we have that:

By the Central Limit Theorem
The sampling distribution of the sample mean is going to be normally distributed, beause the size of the samples are 80, which is larger than 30.
Mean = 94
Standard deviation:

Answer:
???
Step-by-step explanation:
Rational, because Irrational Numbers are a<span>ll </span>numbers<span> that are not </span>rational<span> they are considered </span>irrational. A irrational number<span> can be written as a decimal, but not as a fraction. An </span>irrational number<span> has endless non-repeating digits to the right of the decimal point.</span>