Dinesh notices that many people with gym memberships are overweight. he concludes that gym memberships make people gain weight. what is the error in dinesh's thinking?

John lennon and paul mccartney belonged to this group

What was one of the main goals of european exploration

Chen's research team randomly assigned some newborns and their mothers either to a breastfeeding promotion group (where breastfeeding was encouraged, but not required) or to a normal pediatric care group (where breastfeeding was neither encouraged nor discouraged). which research method did they use?