Answer: A. Mean of sampling means 
Standard deviation of sampling means =
B. The probability that your sample has mean less than 165 is 0.1492 .
Given : The distribution of blood cholesterol level in the
population of young men aged 20 to 34 years is close to normal with
mean 
Mg/dl and standard deviation 
mg/dl.
Sample size : n= 150
Let 
sample mean values.
A. The mean and the standard deviation of the distribution of the sampling means would be :
Mean of sampling means =
Standard deviation of sampling means = 
The probability that your sample has mean less than 165 would be
Hence , the probability that your sample has mean less than 165 is 0.1492 .
Answer:
i justr f arted really loud LOL
Step-by-step explanation:
Answer:
1. is -5/7
2. is 6/-9 OR 1/-3 (negative one third)
3. is 2
Step-by-step explanation:
Answer:
1/64, 2/128
Step-by-step explanation:
4 -³
= 1/4³
= 1/(4×4×4)
= 1/64
We can also multiply the numerator and denominator by 2
(1×2)/(64×2)
= 2/128
I hope this was helpful, please rate as brainliest
Answer: Choice B) The graph opens downThe negative 'a' value means the parabola opens downward. One way to remember it is that the positive 'a' value means "happy face" or "smile", and a negative 'a' value means "frowny face".
See the image attachment and note the color coding of the graphs.
