Carla, a nutritionist, is working with a local health clinic…

Carla, a nutritionist, is working with a local health clinic that wants to estimate the percentage of patients who have a gym membership. At the clinic’s current wellness program, there are 312 enrolled patients. 82 of these patients have a gym membership. Identify the variable being recorded about the individuals in this scenario.

In cognitive psychology experiments, researchers often measu…

In cognitive psychology experiments, researchers often measure reaction time—how long it takes a person to respond to a stimulus (like pressing a button when a light appears). In a simple reaction task, reaction times were normally distributed with a mean of 225 milliseconds (ms) and standard deviation of 25 ms. Approximately % of people that complete this reaction task will have a reaction time between 175 and 275 ms. Approximately 68% of people that complete this reaction task will have a reaction time between and ms.