Industry projections also state what proportion of smartphone and tablet users will have downloaded mobile health apps by 2018?

• A. Two-thirds
• B. One-half
• C. One-quarter
• D. Three-quarters

Answer: (B)

The main idea tested is how many smartphone and tablet users are projected to have downloaded a mobile health app by 2018. At that time, industry forecasts commonly estimated about half of users would have at least one health app, roughly 50%. This sits between widespread smartphone use and the reality that not everyone sees value in or feels comfortable with health apps, so adoption stabilizes around a mid-range level rather than immediately jumping to very high figures. The half-point reflects a realistic diffusion: devices are common and app ecosystems are mature, but barriers like privacy concerns, perceived usefulness, and app fatigue keep the share from climbing much higher. If you consider the other options, numbers like two-thirds or three-quarters would be more optimistic than what many forecasts expected, while one-quarter would be too low given the broad appeal and availability of health apps.