Answer:
C.The mean of the sampling distribution is always
Step-by-step explanation:
The Central Limit Theorem estabilishes that, for a random variable X, with mean and standard deviation , a large sample size, of at least 30, can be approximated to a normal distribution with mean and standard deviation .
So
A is wrong, because it is
B is wrong, you need a sample size of at least 30.
So the correct answer is:
C.The mean of the sampling distribution is always
Answer: 416 Portraits total.
Step-by-step explanation:
So this is actually a really simple question.
There a four cafeteria walls right? And if she puts 104 on each of them, it's a simple mathematical equation.
MATH:
4 x 104 = 416
Hope this helps!
Answer: C
Step-by-step explanation:
To get all the constant terms on one side and variable terms on another, all we have to do is to add or subtract them on both sides.
3x+2x=10+5
Now that the like terms are on one side, we can combine them.
5x=15
To get x alone, we divide both sides by 5.
x=3
Now, we notice that x=3 is not an answer choice, but the next option that is equivalent to x=3 is C.
For C, if you divide both sides by -5, you still get x=3.
-15=-5x
x=3
Each batch has 18 cookies
7*18+252= 378
So 378 cookies