In one sentence, describe what the following article is about: Several schools, programming companies or other sources have created websites that will very easily calculate covariance values for you. Using any search engine, enter the search term "covariance calculator." Read the instructions on the website carefully to make sure that you enter your data properly. It is important that your data pairs are kept in order, or you will generate an incorrect covariance result. Different websites have different styles for entering your data. For example, at the website http://ncalculators.com/statistics/covariance-calculator.htm, there is a horizontal box for entering x-values and a second horizontal box for entering y-values. You are instructed to enter your terms, separated only by commas. Thus, the x-data set that was calculated earlier in this article would be entered as 1,3,2,5,8,7,12,2,4. The y-data set would be 8,6,9,4,3,3,2,7,7. At another site, https://www.thecalculator.co/math/Covariance-Calculator-705.html, you are prompted to enter your x-data in the first box. Data is entered vertically, with one item per line. Therefore, the entry on this site would look like: 1 3 2 5 8 7 12 2 4 The attraction of these calculation sites is that after you enter your data, you generally need only to click on the button that says "Calculate," and the results will appear automatically. Most sites will provide you with the intermediate calculations of the x(avg), y(avg), and n.
Summary: Search the Internet for covariance calculators. Enter your data. Calculate your results.

In one sentence, describe what the following article is about: If you simply grab onto the slack end of your rope and start to swing, the tension in the rope will pull the loop in your lasso shut before you can throw it. So, it's important to use a grip that keeps your lasso wide open as you twirl it and build momentum. Hold your lasso as directed below: Make a nice, big loop by feeding slack through your Honda knot. Lay a foot or two of the leftover slack rope next to your loop. Grab the loop and the length of slack rope together. This should create a "doubled-up" length of rope between the Honda knot and your hand. This doubled-up portion is called the "shank." Point your index finger down the shank towards the Honda knot for added control. Once it's around whatever you're trying to lasso, pull hard on the rope.This will pull the slack in the loop through the Honda knot, tightening the lasso around whatever object is inside it. Never use a lasso on people or animals unless you're an experienced roper - unsafe lasso use can cause suffocation or damage to the throat. It's also difficult or impossible for someone (or something) to remove a lasso without help, so don't run this risk unless you know what you're doing.
Summary: Hold your lasso. Tighten the lasso to grab your target.

In one sentence, describe what the following article is about: Before grouting, caulking, and finishing your job, wait at least 12 hours for the mastic to dry and the tiles to set. If you don't, you could wind up displacing your tiles. Move over your tiles from the left to the right and remove all of the spacers you placed to separate the tiles from one another. If you don't remove the spacers before applying grout, you'll have problems with your grout in the future. If the spacer won't come out, use a flathead screwdriver to pry it out. Be careful not to damage the tile. While you can mix your own grout, it is much easier to purchase premixed grout and apply it without preparation. However, make sure you don't open the grout until you're ready to use it. If you open it earlier, it may begin to dry before you use it. Scoop up a generous amount of grout from your bucket with your float. Spread the grout over the spaces between your tiles. Apply extra grout, as you want to make sure you're completely filling all grout lines. Avoid filling the space between your tiles and your counter, appliances, or windows. You'll fill these in with caulk later. Run your float lightly across the grouted portions of your tile. Use it to scope up as much excess grout as you can. By removing grout, you'll make your cleanup process a lot easier. You'll also be able to use the excess grout elsewhere in your project. Take a rounded tool and run it along your grout lines. This will give a slightly concave appearance to your grout lines. It will also help to compact the grout and fill any pockets that aren't already filled. Dampen a sponge in cool clean water. Wipe your tiles in a back-and-forth fashion. Rinse your sponge after you've wiped down one 4 foot (1.2 m) row of tiles. Continue to wipe your tiles until you've removed any grout or grout haze that remains on them. Use a caulk that closely matches the color of the grout you used. Squeeze your caulk gun or the tube slightly to push out just enough caulk to fill the gap. Finally, dampen one of your fingers in warm water and use it to smooth the caulk. You can use a rounded end of a pen, pencil, or another object instead of your finger. Place painter's tape on the face of the tiles adjacent to where you'll caulk. Remove the tape shortly after you've applied the caulk.
Summary:
Allow the tiles to set overnight. Remove spacers from between your subway tiles. Open your premixed grout 15 minutes before you use it. Spread grout with a float back and forth. Remove excess grout with a float. Shape your grout with a pen, pencil, or the rounded edge of a float. Use a sponge to remove any grout haze. Caulk the edges between your tiles and cabinets, windows, and appliances.