"start", "control panel", "administrative tools", "computer management" thats it
The common name for such a program is called a Web Browser. There exist several names for popular browsers, E-Internet Explorer, Mozilla FireFox, Google Chrome, Safari, etc. At the start of the internet, they were not always around, as the internet was mostly used for communications in the US armed forces. In the early-mid 1990's, the first few browsers were created when the first computer OS became mainstream. As the years have gone by, they have since become stronger and faster, and one can do anything on the internet from watching videos, opening a business, talking to your friend or even run a political campaign.
Answer:
4.24
Explanation:
First you find the mean of the data set, which is 7. Then to find standard deviation you have to follow the formula which tells you to subtract the mean from each number under the square root : √(2 - 7)^2 + (9 - 7)^2 + (10 - 7)^2 + (4 - 7)^2 + (8 - 7)^2 + (4 - 7)^2 + (12 - 7). Once you solve the parenthesis you square it, once you square it the negatives won't matter. That will leave you with this : √(25 + 4 + 9 + 9 + 25). The formula tells you to find the sum of those numbers (which is 72) then subtract one from how many numbers there are, 5 - 1 = 4, and divide your sum by that number. So 72 / 4 = 18. Then you find the square root of 18 and that becomes your answer.
