Simple random sample and a stratified random sample

Simple random samples and stratified random samples differ in how the sample is drawn from the overall population of data. Simple random samples involve the random selection of data from the entire population so each possible sample is equally likely to occur. In contrast, stratified random sampling divides the population into smaller groups, or strata, … Continue reading Simple random sample and a stratified random sample

Teach Kids Programming and Computer Science

Find below some resources for kids to learn about computer and programming in a fun way: TURTLE ROBOTS http://www.thinkfun.com/robotturtles/ KIBO http://www.kinderlabrobotics.com/ https://www.kickstarter.com/projects/559733758/kibo-young-kids-programming-robots-with-wooden-blo SPHERO http://www.gosphero.com/ MINDSTORMS education.lego.com/en-gb/preschool-and-school/secondary/11plus-mindstorms-education MOVE THE TURTLE http://movetheturtle.com/ SCRATCH http://scratch.mit.edu/ http://scratched.media.mit.edu/ https://code.google.com/p/scratch-unplugged/ http://www.simonhaughton.co.uk/2013/02/scratch-20-resources-and-planning.html ALICE http://www.alice.org https://www.kidscodecs.com/alice-tutorials/ TYNKER http://www.tynker.com/ https://itunes.apple.com/us/app/tynker-learn-programming-visual/id805869467 CODEA http://codea.io/ https://www.kidscodecs.com/codea-tutorials/ PROGRAMMING LANGUAGES FOR EDUCATION https://www.kidscodecs.com/resources/programming/education/ MINECRAFT https://minecraft.net http://minecraftedu.com/ https://www.kidscodecs.com/raspberry-pi-projects/ SKYPE IN … Continue reading Teach Kids Programming and Computer Science

Chi-Squared Test for Machine Learning:

Chi-Squared Test for Machine Learning: A common problem in applied machine learning is determining whether input features are relevant to the outcome to be predicted. This is the problem of feature selection. In the case of classification problems where input variables are also categorical, we can use statistical tests to determine whether the output variable … Continue reading Chi-Squared Test for Machine Learning: