Walking and Running

Difficulty: Medium · Topics: Probability, Statistics, Scatter Plots

The scatter plot shows how many minutes each member of a gym group spent walking and running on the treadmill.

graph "x":[-1.6,13.6],"y":[-1.0,8.5],"axes":false,"label":"Scatter plot of 10 people: walking minutes across, running minutes up; running time falls as walking time rises","items":["type":"line","from":[1.667,0],"to":[1.667,7.0],"dash":true,"ink":true,"width":0.7,"type":"label","at":[1.667,-0.45],"text":"10","italic":false,"type":"line","from":[3.333,0],"to":[3.333,7.0],"dash":true,"ink":true,"width":0.7,"type":"label","at":[3.333,-0.45],"text":"20","italic":false,"type":"line","from":[5.0,0],"to":[5.0,7.0],"dash":true,"ink":true,"width":0.7,"type":"label","at":[5.0,-0.45],"text":"30","italic":false,"type":"line","from":[6.667,0],"to":[6.667,7.0],"dash":true,"ink":true,"width":0.7,"type":"label","at":[6.667,-0.45],"text":"40","italic":false,"type":"line","from":[8.333,0],"to":[8.333,7.0],"dash":true,"ink":true,"width":0.7,"type":"label","at":[8.333,-0.45],"text":"50","italic":false,"type":"line","from":[10.0,0],"to":[10.0,7.0],"dash":true,"ink":true,"width":0.7,"type":"label","at":[10.0,-0.45],"text":"60","italic":false,"type":"line","from":[0,1.167],"to":[10.0,1.167],"dash":true,"ink":true,"width":0.7,"type":"line","from":[0,2.333],"to":[10.0,2.333],"dash":true,"ink":true,"width":0.7,"type":"line","from":[0,3.5],"to":[10.0,3.5],"dash":true,"ink":true,"width":0.7,"type":"line","from":[0,4.667],"to":[10.0,4.667],"dash":true,"ink":true,"width":0.7,"type":"line","from":[0,5.833],"to":[10.0,5.833],"dash":true,"ink":true,"width":0.7,"type":"line","from":[0,7.0],"to":[10.0,7.0],"dash":true,"ink":true,"width":0.7,"type":"label","at":[-0.2,1.167],"text":"10","anchor":"w","italic":false,"type":"label","at":[-0.2,2.333],"text":"20","anchor":"w","italic":false,"type":"label","at":[-0.2,3.5],"text":"30","anchor":"w","italic":false,"type":"label","at":[-0.2,4.667],"text":"40","anchor":"w","italic":false,"type":"label","at":[-0.2,5.833],"text":"50","anchor":"w","italic"