Answer:
Let X the random variable that represent the heights of a population, and for this case we know the distribution for X is given by:
Where
and
Since the distribution for X is normal then the we know that the distribution for the sample mean
is given by:
And the standard error is given by:
![SE= \frac{0.08}{\sqrt{24}}= 0.0163](https://tex.z-dn.net/?f=%20SE%3D%20%5Cfrac%7B0.08%7D%7B%5Csqrt%7B24%7D%7D%3D%200.0163)
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the heights of a population, and for this case we know the distribution for X is given by:
Where
and
Since the distribution for X is normal then the we know that the distribution for the sample mean
is given by:
And the standard error is given by:
![SE= \frac{0.08}{\sqrt{24}}= 0.0163](https://tex.z-dn.net/?f=%20SE%3D%20%5Cfrac%7B0.08%7D%7B%5Csqrt%7B24%7D%7D%3D%200.0163)
Answer:
7
Step-by-step explanation:
because the answer to the question is 7
1. certain
2. unlikely
3.impossible
4.neither likely of unlikely
Answer:
She took it off at 100 (because of the y-intercept) and it will last 20 hours because of where the line meets the x-axis.