Attach 2 screen shots demonstrating an understanding of file management tools, such as keyboard shortcuts, copy, paste, delete,
1 answer:
Answer:
Explanation:
In the first image, I am showing hovering over the copy button on the toolbar that shows the keyboard shortcut to copy an item. I am also copying the 360 Photos folder using that shortcut. In the second image, I am hovering over the paste icon in the toolbar to show the shortcut for that button and using it to paste the 360 Photos folder within the Camera Roll folder. There are many different keyboard shortcuts that can be used here are some of the following...
delete: del
move: shift + drag the mouse (no keyboard shortcut)
rename: F2
create shortcut: (no keyboard shortcut) right click item and choose create shortcut.
search: windows key + S
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Answer:
The correct Answer is 0.0571
Explanation:
53% of U.S. households have a PCs.
So, P(Having personal computer) = p = 0.53
Sample size(n) = 250
np(1-p) = 250 * 0.53 * (1 - 0.53) = 62.275 > 10
So, we can just estimate binomial distribution to normal distribution
Mean of proportion(p) = 0.53
Standard error of proportion(SE) = =
= 0.0316
For x = 120, sample proportion(p) = =
= 0.48
So, likelihood that fewer than 120 have a PC
= P(x < 120)
= P( p^ < 0.48 )
= P(z < ) (z=
)
= P(z < -1.58)
= 0.0571 ( From normal table )