Problem: Article: These are statistics that allow you to communicate your data effectively. They provide information about the properties of the data you've produced and allow your readers to understand important things about it from a single glance.When you say, for example, that on average people who received the medicine got better 1.7 days sooner, you are presenting descriptive statistics.  What is the central tendency of the data? Central tendency is measured using mean (average), median, or mode. For example, in a study on the effects of caffeine on sleep, you will want to calculate the mean number of hours slept by members of the control and experimental groups. What is the distribution of the data? Again, there are many different ways to measure how the data are distributed, including range, variance, and standard deviation. In addition, if available, compare pre-test and post-test results. To do this, you will need to conduct a statistical analysis of your data. While this is a broad subject, you can make a good start by calculating basic descriptive statistics and by running a t-test to assess if differences observed are significant. Tests of significance will allow you to estimate how likely it is that your results were produced by chance rather than a genuine experimental effect. It determines whether there is a statistically significant difference between the results for the control and experimental groups. A t-test is a common test of significance. A t-test compares the difference between the means of two sets of data in relation to the variation within the data. You can calculate a t-test by hand or by using statistical software such as Microsoft Excel. What limits were there on your ability to control possible extraneous factors? To what extent did your subject group reflect the larger population you hoped to study? What alternative hypotheses could be sustained on the basis of your data? When presenting your results, consider limitations honestly and use them to suggest further lines of research.
Summary: Calculate descriptive statistics. Compare the post-test results produced by the experimental and control groups. Test your hypothesis. Evaluate your experiment.

Problem: Article: Be careful where you run. Choose locations that are safe, with lots of people around and as few cars as possible. Choose a good time to run. Running at night or in the morning, before dawn, is much more dangerous than running during the day. You run the risk of getting hit by a driver that can't see you or someone taking advantage of you when fewer people are around. Stay visible to drivers. If you do decide to run near a road, stay visible by wearing bright, reflective clothing. You can also get safety devices, like a blinking LED, to get even more attention. Jog with a buddy. Whether jogging with a person or even just a dog, this is significantly safer. This will help keep you safe from people who may want to take advantage of you! Do a test run. Do a basic jog and see how it makes you feel. Test how far you can get before you feel super gross. By setting realistic expectations, you'll be much more likely to succeed. Don't forget about getting back to your starting point. Factor in how long it takes you to run and leave in time to get back to your starting point. Yes, you may be able to get to that coffee shop down the road, but what about getting back? Slowly increase your distance over time. Remember, you'll be able to jog a greater distance once you're in better shape and can move farther, faster. Work your way up to it. Increasing will also give your body a better workout, so keep a longer route in mind. Use mapping software. You can use free tools like Google Maps or RunningMap.com to measure the distance of your route and track things like elevation changes. Some websites even have a social aspect, allowing you and other runners in your area to share and compare routes. Account for terrain. Changes in road types, terrain changes, and elevation changes can be a bigger hurdle than you give them credit for. Try to avoid things like having a steep hill right at the end of your run. You'll increase the chances of hurting yourself. Test it out. Once you think you've got a good route in mind, test it out before making up your mind. You can even choose a few different routes to cycle between during the week.
Summary: Factor in safety. Decide how far you want to jog. Map it!

Problem: Article: If you can sense that your friend does not want to talk about something, turn the conversation back to the activity you originally planned, or suggest a new activity. It is not your job to be funny or interesting.  Experts say that the conversations that people find the most interesting are the ones where they are able to talk about their own interests the most.  All you have to do is ask your friend about what interests them, and listen carefully, so you can ask follow-up questions. If your activities don’t work out, suggest something that you usually like to do. If all else fails, take a walk or get food. Don’t let changes ruin the visit. Remember that some of the best visits are not centered around an activity at all. Activities are really just an excuse to hang out and talk.  If the two of you are having a good time without doing the activity, don't rush into doing it.  If the conversation ever runs out, the activity will be a good way to break the silence. Don't expect to be best friends as soon as the visit is over.  Just be confident in the fact that you were able to successfully ask someone over, and keep doing it until it becomes second nature.
Summary:
Don't let a moment of awkwardness ruin the visit. Be flexible and spontaneous. Remember that some friendships take time to grow.