Internet Classes A survey of 25 students was conducted to determine how they rate the quality of Internet classes. Students were asked to rate the overall quality from 0 (no quality at all)to 100 (extremely good quality). The stem-and-leaf display of the data is shown below. 
{Internet Classes Narrative} What percentage of the students rated the overall quality of on-line classes as being between 50 and 75, inclusive?
Definitions:
Lifespan Development
The study of how individuals grow, change, and adapt at different stages of life, from infancy through old age.
Nature-Nurture
A debate concerning the relative importance of an individual's innate qualities (nature) versus personal experiences (nurture) in determining or causing differences in physical and behavioral traits.
Heredity
The transmission of genetic characteristics from parents to offspring.
Environment
The sum of all external conditions affecting the life, development, and survival of an organism.
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