Sams+Maths

STATISTICS **__MY STATISTICAL INVESTIGATION:__**  __INTRODUCTION:__ My statistical investigation is to find out who has quicker reaction times (year 7 girls, year 8 girls, year 7 boys, year 8 boys?) Kelsie and I conducted an experiment to measure your reaction time using a clear plastic ruler dropped from an identical height. The faster you catch it, the lower the result when measured against a ruler. I have displayed the results using five different graphs, here are my results: __SURVEY EXPLANATION:__ I conducted this survey because I always wanted to know who has quicker reaction times. I then wondered if age made a difference so I rewrote my question by adding a Year 7's vs. Year 8's component. This information could be useful for... Teachers selecting sports teams: - Because if it is a sport involving a sports ball you would want them to have quicker reaction times. Forensic scientists working on a crash scene. - This could help them detect how fast the car was travelling.
 * I used the ruler drop test because it is an accurate measure of your reaction time. Otherwise it would be quite hard to measure your reaction time because it only takes a few milliseconds for you to react, therefore it would be impossible to time with a stop watch.