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How do you estimate and interpret a residual? So, to find the residual I would subtract the predicted value from the measured value so for x-value 1 the residual would be 2 – 2.6 = -0.6. Mentor: That is right! How do you interpret a residual? A residual is the vertical distance between a data […]

What did Pheidippides yell? The story goes that after the Athenians defeated the Persians at the Battle of Marathon in 490 BC, Pheidippides, who’d fought in the battle, ran all the way to Athens to announce the victory. He arrived and shouted, “We’ve won!”—then dropped dead. What was Pheidippides known for? Pheidippides, also referred to […]

Is AP statistics easier than precalculus? Statistics (the AP course) in my opinion is a slightly less challenging class than pre-calc. I am enrolled in both of these classes right now at the high school level. Statistics (the AP course) in my opinion is a slightly less challenging class than pre-calc. Should I take AP […]

What app can I use for science? Here are some of our favorite apps for doing science on your smartphone. eBird. eBird helps log your bird spotting. Star Walk. This app maps the night sky. NASA Globe Observer. Real research can draw on the work of NASA Globe Observer users. MyShake. The Elements. AcceleratAR. Wolfram […]

How do you calculate residuals in Excel? Click “Add Chart Elements” from the DESIGN tab, then “Trendline”, and then “More Trendline Option. Leave “Linear” selected and check “Display Equation on Chart.” Close the “Format Trendline” panel. This is the residual plot. The x-axis displays the fitted values and the y-axis displays the residuals. What is […]

What are the curly Caterpillar letters? The Curly caterpillar family (c, a, d, g, q, o, e, s and f) is formed with a rounded movement made to start writing the letter. What is a ladder letter? The Long ladder letter family (l, i, u, t and y) is formed with a long, downward movement […]

How do you survive back to school? Tips Stay organized. Skipping breakfast might save time, but it can leave you less able to focus. Make sure you are prepared for the day for you go back to school. Always check your backpack the night before. Make sure that you have set your alarm clock! Try […]

Can background music help learning? Proven to improve brain functions Basically, music helps your brain function! “Background music may enhance performance on cognitive tasks. If you want to improve brain performance while studying, evidence now shows that you must first improve your emotional state by listening to music that you enjoy! What is Mozart Effect […]

What did Pheidippides say before he died? He then ran the 40 km (25 mi) to the battlefield near Marathon and back to Athens to announce the Greek victory over Persia in the Battle of Marathon (490 BCE) with the word νικῶμεν (nikomen “We win!”), as stated by Lucian chairete, nikomen (“hail, we are the […]

What was Pheidippides famous for? Pheidippides, also referred to as Pheidippides, was the messenger soldier who famously ran a long distance from the battlefield at Marathon to Athens in order to tell the people that the Athenians had, in fact won. After he gave his message, he promptly dropped dead from the exertion. What do […]