Give your best estimate of the age at which about 50
{"Image DocumentName": "Give your best estimate of the age at which about 50", "Image ImageDescription": "percent of children begin to: 1. Laugh. 2 months. 2. Pedal a tricycle. 24 months. 3. Sit without support. 5-6 months. 4. Feel ashamed. 2 years. 5. Walk unassisted. 12 months. 6. Stand on one foot for 10 seconds. 4.5 years. 7. Recognize and smile at mother/father. 4-5 months. 8. Kick a ball forward. 20 months. 9. Think about things that cannot be seen. 2 years. 10. Make two-word sentences months.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}