INPUT ARTICLE: Article: While your Pacific tree frog gets most of its water from soaking, it won't always be smart enough to hop over to the water when it's dehydrated. Use a fine spray bottle filled with filtered water to spray down your frog and the inside of its tank each day to keep it moist. Pacific tree frogs thrive best in a very humid environment, around 70% humidity. If you can't maintain this level of humidity, look online or ask at your local pet store about a terrarium humidifier that will help keep your frog happy. Purchase a hydrometer to attach to the tank so that you can monitor the humidity more closely. Tank or terrarium hydrometers should be available online or at your local pet store. Make sure the spray bottle is filled with filtered water, bottled water, or treated tap water. The chlorine in tap water is toxic to frogs and may make your frog sick. As your frog spends a lot of time in the water in its tank, it will often defecate or bring substrate into the water that can muddy it. Each morning, lift the dish of water out of the tank, pour it away outside, and refill it with filtered or bottled water. This will make sure your frog always has safe, clean water to sit ion. If the water still looks clean when you go to change it, it should be OK for another day or so. If you have more than 1 frog in your tank, the water will need changing more often. You can also refill your frog's water with tap water that has been treated with a dechlorination tablet. Purchase a terrarium or tank thermometer and attach to the outside of the glass. Check the thermometer at least once each day to make sure the inside of the tank remains between 4560F (716C). If you notice that the temperature inside the tank is lower than it 45F (7C), purchase an electronic heating pad to sit under one side of the tank to keep it warm. Pads designed for tree frogs should be available online or at your local pet store. Thermometers designed to attach to the glass of a tank or aquarium should be available online or from your local pet store. Transfer the frog to a small holding tank with some clean water and remove everything else from the tank. Scrub down the sides of the glass with filtered, bottled, or treated water to clean it, wipe down any decorations in the tank, and clean the water dish. Let everything dry fully before reassembling the tank and returning your frog to it. Don't use any chemicals when cleaning the tank, as even residual chemicals can burn your frog's skin. If you use a natural layer of substrate, you should remove it and replace it with new substrate every month as well. This will help get rid of any waste that settles into the substrate. Wear gloves when cleaning the tank to avoid touching anything that could make you sick.

SUMMARY: Mist the frog and its habitat daily with filtered, bottled, or treated water. Change the water every day. Attach a thermometer to the tank to monitor its internal temperature. Clean the tank thoroughly at least once a month.

In one sentence, describe what the following article is about: In the text field that's in the middle of the page, type in a simple name for your server's domain. Your server name must not exceed 10 characters. Your server name cannot contain special characters, nor can it contain spaces. It's the blue button in the lower-right corner. This creates your server and takes you to your Dashboard. It's the blue button to the right of your server status on the Dashboard. It may take a minute for your server to a high performance DDoS protected server. If your server gets disconnected at any time while settings up your server or the settings, click Activate to reconnect. When your server is done moving to a new host, a blue button that says "Continue" next to the button that says "Online".
Summary: Enter a server name. Click Create. Click Activate. Click Continue.

This represents the spread of the population. Standard deviation = = sq rt [(((X-)^2))/(N)]. For the example given, the standard deviation is sqrt[((12-62)^2 + (55-62)^2 + (74-62)^2 + (79-62)^2 + (90-62)^2)/(5)] = 27.4. (Note that if this was the sample standard deviation, you would divide by n-1, the sample size minus 1.)
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One-sentence summary -- Calculate the standard deviation.

INPUT ARTICLE: Article: If you're buying something online or simply paying an individual in Bitcoin, you may be able to copy the information you need to complete the transaction from any type of wallet. However, if you want to pay for goods and services in person, you'll need to have Bitcoin in a wallet you can access on the go, such as a mobile wallet. Many brick-and-mortar merchants use apps, such as BitPay, to process their Bitcoin transactions. To use your mobile wallet, make sure it's compatible with the app the merchant is using. When you download the mobile wallet app, it will tell you which services it is compatible with. The individual or merchant you want to pay will give you the public address for their wallet or account. From your wallet, you'll send your Bitcoin to this address as payment. Typically, you'll receive an invoice that specifies the amount of Bitcoin you owe the individual or merchant. Because Bitcoin value is volatile, this invoice will only be valid for a brief window of time maybe 10 or 15 minutes. Many individuals and merchants provide a QR code that you can simply scan with your phone from your mobile wallet app to send your Bitcoin to the right place. Within your wallet app, choose the option to send your Bitcoin to another wallet. Enter the payment information the individual or merchant gave you along with the amount of Bitcoin you want to send them. Then tap or click the button to send the Bitcoin. If you scanned a QR code from within your wallet app, all of this information will be filled in for you. Look over it before you click send to make sure the amount of Bitcoin is correct. Once you submit your payment, the transaction is sent to the blockchain for confirmation. Miners (Bitcoin users with powerful computers) work to confirm the transaction. Typically it takes 10 to 30 minutes to confirm a transactions. Once your transaction is confirmed, it can't be reversed. If you're buying something from a brick-and-mortar merchant, you'll likely get whatever you bought before the transaction is actually confirmed. However, you may be sent another invoice for payment if the transaction isn't confirmed or if it takes several hours to confirm.

SUMMARY:
Transfer the Bitcoin you want to use to an accessible wallet. Copy or scan the payment information. Send your Bitcoin to the address you copied. Wait for the transaction to be confirmed.