Statistics: A way of reasoning, along with a collection of tools and methods, designed to help us understand the world.
101 Dalmatians and Peter Pan (Wendy) are the only two Disney cartoon features with both parents that are present and don't die throughout the movie. A hedgehog's heart beats 300 times a minute on average. In Bangladesh, kids as young as 15 can be jailed for cheating on their finals.
Distraction from cell phone use while driving (hand held or hands free) extends a driver's reaction as much as having a blood alcohol concentration at the legal limit of.08 percent. (University of Utah) The No.1 source of driver inattention is use of a wireless device. (Virginia Tech/NHTSA) Drivers that use cell phones are four times as likely to get into crashes serious enough to injure themselves. (NHTSA, Insurance Institute for Highway Safety) Driving while using a cell phone reduces the amount of brain activity associated with driving by 37 percent (Carnegie Mellon)
Who? Respondents,variables … What? Variables (categorical or quantitative) When? Present day or 1800’s Where? USA or other Why? The purpose of your data gathering How? Census, internet study,…
Context Data Individuals Variables Categorical variables Quantitative variables
GenderHandHeight (in)HW time(min) Favorite Music Pocket change (cents) FL65200Hip-hop50 ML7230Country35 MR6295Rock35 FL64120Alternative0 MR63220Hip-hop0 FR5860Alternative76 1.What individuals does this data set describe? 2.Identify the variables. Which are quantitative? Categorical? In what units are they measured? 3.Describe the individual in the last row.
A professor of global health at Sweden’s Karolinska Institute Focus’s on social and economic trends Uses Gapminder statistical software that he co-founded.