Q: This is important as the oils on your hair will help protect it against damage. When you do wash your hair 24 to 48 hours prior, make sure that you only use shampoo. Conditioner will prevent the dye from adhering. Put on a shirt that you won't mind staining, then wrap an old towel or a plastic cape around your shoulders. Coat your hairline, the tips of your ears, and the back of your neck with petroleum jelly. Finally, pull on a pair of plastic gloves.  Work in an area that is easy to clean, such as a bathroom or kitchen. If you are worried about staining the counters or floors, cover them with newspaper, paper bags, or plastic bags. It is easier to dye your hair in layers .5–1 in (1.3–2.5 cm) thick rather than in sections. Part your hair across the back of your head at about ear-level. Pull everything above the part into a bun.  Secure the bun with a claw-clip. It'll be the easier to remove and replace. If you have very thick hair, you may want to part it even lower so that you are working with thinner sections. If your hair is too short to pull into a bun, use clips. If you have chin-length or shorter hair, you may not have to do this step at all. Some dyes come in a kit that already include the dye and developer. For other dyes, you must purchase the developer separately. Follow the instructions that came with the dye to find out how you should mix them.  You can mix the dye in the squeeze bottles that came in the kit, or you can mix it in a non-metal bowl.  If you are lightening your hair, add 1 to 3 packets of toner. The more packets you use, the ashier the final color will be.  If you can't find packets of toner, don't worry; you can wash your hair with purple shampoo afterwards to remove brassy hints. Take a thin strand of hair from an inconspicuous area, such as your nape, and apply the dye to it. Cover the strand with plastic wrap, and let the dye sit for the time recommended on the bottle. Rinse the dye out with cool water, then let it dry.  You don't have to use conditioner for this since this is just a strand test. Although not absolutely necessary, strand tests are highly recommended because the color may come out differently from what you expect. If the dye did not turn out the way you wanted it, you’ll have to buy a different color.
A: Start with dry, brushed hair that hasn't been washed for 24 to 48 hours. Protect your clothing and skin against stains. Pin your hair up, leaving only the bottom layer loose. Prepare your dye according to the instructions on the package. Perform a strand test to gauge the color.

Q: Chlorine – which is used to kill bacteria in pool water and keep it swimmable – will strip the natural oils that usually help protect your hair from damage associated with dryness and daily wear.  The goal of swimmer's hair treatment is maintaining a healthy level of moisture in your mane.  The first must-do step is to shower immediately after your swim.  Chemicals are beginning to damage your hair as soon as you jump in.  Fight back as soon as you get out of the pool! For added resilience, use moisturizing conditioner and shampoo. Massage moisturizing hair products into your hair and scalp to ensure complete coverage of your hair. A moisturizing “leave-in” conditioner can help making brushing go more smoothly. If your hair sometimes changes colors – blondes may go a bit green, and darker-haired people may see their hair lighten in color – there are shampoos designed to specifically fights this effect.  Mineral deposits such as copper are actually the culprits associated with color changes in your hair. There are products specifically designed to rid your hair of copper before it sets in, such as chelating shampoos that lower the pH of your hair and remove the copper. Even hair products meant to treat swimmer's hair may dry your hair out when you first begin to use them.  Chlorine, for all its disinfectant glory, will bond to your hair, so you may need more than your run-of-the-mill cleaning products to get it out. Use only enough hair product to get results, and don't use strong shampoos too frequently. Be sure to use a moisturizing conditioner following the use of a potentially harsh shampoo.
A: Begin treating your hair as soon as you get out of the pool. Consider a swimmer-specific shampoo. Be careful with strong hair products.

Q: In an open Excel document, fill the second column with the "bins", or data groups that you want (20/30/40, 0/5/10/15, etc) with one group per cell. Fill the first column with the frequency of results for that group (called the grade), or the levels that you want the bars for that group to be at. Click Tools → Data Analysis. This is not always a standard feature in Excel so you may need to install it using the Add-ins option. Select the histogram option in the Data Analysis menu and then click OK. You will need to use the menu to select which column is which. Select the chart output button and then press OK. Enjoy your chart. Don't forget to save it.
A: Fill out your data. Do a data analysis. Select histogram. Adjust your input and bin ranges. Select chart output. Done!

Q: In most regions, the only time you can hack a WPA or WPA2 network is when the network either belongs to you or belongs to someone who has given you explicit consent to hack the network. Hacking networks that don't meet the above criteria is illegal, and may constitute a federal crime. Kali Linux is the preferred tool for hacking WPA and WPA2. You can download the Kali Linux installation image (ISO) by doing the following:  Go to https://www.kali.org/downloads/ in your computer's web browser. Click HTTP next to the version of Kali you want to use. Wait for the file to finish downloading. You'll need to use a flash drive with at least 4 gigabytes of space for this process. . This is necessary in order to be able to use the USB flash drive as an installation location. You can also use a Mac for this step. Open the flash drive, then drag the downloaded Kali Linux ISO file into the flash drive's window. Make sure you leave your USB flash drive plugged in after you finish this process. To install Kali Linux on your computer, do the following:  Prompt your Windows computer to restart.  Enter the BIOS menu. Set your computer to start from your USB drive by finding the "Boot Options" (or similar) section, selecting your USB drive's name, and moving it to the top of the list. Save and exit, then wait for the Kali Linux installation window to appear (you may have to restart your computer one more time). Follow the Kali Linux installation prompts. You can find Wi-Fi cards online or in tech department stores. Make sure that your Wi-Fi card allows monitoring (RFMON), or you won't be able to hack a network.  Many computers have built-in RFMON Wi-Fi cards, so you might want to try the first four steps of the next part before buying one. If you're using Kali Linux in a virtual machine, you will need a Wi-Fi card regardless of your computer's card. Enter your root username and password when logging in. You will need to be on your root account at all times during the hacking process. Doing so will immediately prompt the card to begin setting up and downloading drivers for itself; if prompted, follow the on-screen instructions to complete the setup. Once you're done with this step, you can proceed with hacking your selected network.  If you've already set up the card on your computer before, you'll still have to set it up for Kali Linux here by plugging it in. In most cases, simply attaching the card to your computer will be enough to set it up.
A:
Understand when you can legally hack Wi-Fi. Download the Kali Linux disk image. Attach a flash drive to your computer. Make your flash drive bootable Place the Kali Linux ISO file on the flash drive. Install Kali Linux. Buy a Wi-Fi card that supports monitoring. Log into your Kali Linux computer as root. Plug your Wi-Fi card into your Kali Linux computer.