In one sentence, describe what the following article is about: To get tan quickly, you'll need to apply a lotion or oil with a low SPF, but you still want to make sure you have some protection from the sun's powerful rays. Choose between rub-on lotions, aerosol sprays, and oil rubs and mists that all contain some SPF. Ideally, choose an SPF between four and 15 depending on the strength of your base tan. If you are already somewhat tan, you can go with a lower SPF. If this is your first exposure of the summer season, choose SPF 15 to avoid getting sunburned. For the most even tan possible, choose a spray or an oil. Because of their watery texture, these two options are the easiest to spread thoroughly over your skin. Make sure to rub in sprays with your hands after spraying. Popular sun tanning lotions and oils are available from Hawaiian Tropics, Australian Gold, Banana Boat, and Maui Babe. Most can be found at your local drugstore or beauty supply store. Wear a lip balm with at least SPF 15. You don't need your lips to be tan. Dry, chapped lips are not only unattractive but also painful. If you want to skip the store-bought stuff and you already have a good base tan, there are natural oils that will attract the sun and give you that olive glow. Apply these natural tan-enhancers before going out into the sun and wash off with soap and water when finished tanning. Some natural products include: Olive oil Coconut oil Hazelnut oil Avocado oil Wheat-germ oil Sunflower oil Sesame oil Green Tea Extract Like a chicken roasting in a rotisserie, you need to turn your body over frequently to get an even tan. A good rule of thumb is to turn in 1/4 revolutions every half hour. Start on your back, then turn to your left side, then your stomach, and lastly your right side. Make sure to change the position of your arms and legs frequently to avoid awkward tan lines. As the sun moves across the sky, move your towel or lounge chair so that you can always be in direct sunlight. If you don't want to lay around all day, you can also do something active outside, just wear as little clothing as possible to allow the sun to hit your skin. Though dermatologists usually tell you to avoid the sun during peak hours, if you're trying to get tan quickly, hit the tanning grind when the sun is strongest. If you are trying to get tan all over, then there's really no other option than to put on your birthday suit and soak up the sun. Find a nude beach or a private (fenced) area of your backyard and let the sun work its magic! This technique is a blast from the past, but it will actually magnify and focus the sun on your skin. There are several reflective products on the market that can help attract the sun to your body. Lay-out on a reflective towel or purchase a reflective sun screen. Rest a sun screen at your waist and tilt it at about a 45-degree angle until the sunlight hits your body. Because water attracts and reflects sunlight, laying on or near a body of water will help you absorb as much sunlight as possible. Get some floaties, lay on a raft, or sit in an inner tube on the water to tan in the sun. Make sure that you are always covered with some sort of low SPF oil or lotion. Even water-resistant products should be reapplied just to be careful. Keep your skin hydrated and seal in your bronze after a tanning session by applying a moisturizing lotion.
Summary: Choose a base lotion or oil with a low SPF. Slather a natural oil on skin with a good base tan. Turn your body over frequently. Position yourself in direct sunlight. Lay out in the middle of the day between 10am and 4pm. Get naked. Use a reflective sheet or towel to focus the sun. Lay on a floatation device in the water. Reapply lotion and/or oil every two hours or after contact with water. Apply an aloe-based moisturizer or a good lotion after tanning.

In one sentence, describe what the following article is about: In order to create active voice, you need to make sure that the subject is acting, that is the subject in the one doing the verb. We've established that the verb is the action word in the sentence. Make sure the "who or what did the action" is actually performing the action. The dog wagged its tail is active voice. That's because the act of wagging is the verb. Who or what did the wagging? The dog. The dog in the sentence is performing the verb, wagging. Thus, the sentence is in active voice. Passive voice involves making a compound verb by using the phrase "to be" or any of its conjugations. A sentence is also in the passive voice if the thing that is doing the verb is preceded by the prepositional phrase "by the" or "by a", or the thing doing the action may be completely eliminated. For example, The tail was wagged by the dog is passive voice. This is because the tail, the subject, is being acted upon by the verb. Sometimes people eliminate the prepositional phrase describing who the action was being done by, and write a sentence like: The tail was wagged. This is often done to eliminate responsibility or when people don't know who did the action.
Summary: Make sure that the subject is doing the action. Spot passive voice.

In one sentence, describe what the following article is about: To find the standard error, first you must determine the standard deviation (because the standard deviation, s, is part of the standard error formula). Start by finding the average of your sample values. Sample mean is expressed as the arithmetic mean of measurements x1, x2, . . . xn. It is calculated with a formula that is shown above. For example, say you need to calculate the standard error of a sample mean for the weight measurements of five coins, as listed in the table below:You would calculate the sample mean by plugging the weight values into the formula, like this: Once you have the sample mean, you can expand your table by subtracting it from each individual measurement, then squaring the result. In the example above, your expanded table would look like this: The total deviation is the average of these squared differences from the sample mean. Add your new values together to determine it. In the example above, you would calculate as follows:This equation gives you the total quadratic deviation of measurements from the sample mean. Note that the sign of the differences is not important. Once you know the total deviation, you can find the average deviation by dividing by n -1. Note that n is equal to the number of measurements. In the example above, you have five measurements, so n 1 would equal 4. You would calculate as follows: You now have all the necessary values to use the formula for standard deviation, s. In the example above, you would calculate standard deviation as follows:Your standard deviation is therefore 0.0071624.
Summary:
Calculate the sample mean. Subtract the sample mean from each measurement and square the value. Find the total deviation of your measurements from the sample mean. Calculate the average quadratic deviation of your measurements from the sample mean. Find the standard deviation.