Hmmm... try subtracting or multiplying the other numbers??
Answer:
Time with 4.2MB/S speed = 7314.3 seconds
Time with 900 KB/S speed = 34952.5 seconds
Step-by-step explanation:
Given that:
Internet download speed = 4.2 MB/S
File to download = 30 GB
1 GB = 1024 MB
30 GB = 30*1024 = 30720 MBS
Time required = ![\frac{30720}{4.2}](https://tex.z-dn.net/?f=%5Cfrac%7B30720%7D%7B4.2%7D)
Time required = 7314.3 seconds
With 900 KB/S
1 MB = 1024 KB
30720 MB = 30720 * 1024 = 31457280 KBS
Time = ![\frac{31457280}{900}=34952.5\ seconds](https://tex.z-dn.net/?f=%5Cfrac%7B31457280%7D%7B900%7D%3D34952.5%5C%20seconds)
Hence,
Time with 4.2MB/S speed = 7314.3 seconds
Time with 900 KB/S speed = 34952.5 seconds
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:
(0,2)
Step-by-step explanation:
The solution would just be where these two functions cross, which is at the point (0,2) in this case.