The following is a list of GPA ranges and frequencies from a high school.Use 1.5 as the midpoint of the 2.0 or less category. 
a.What is the mean GPA?
b.What is the sample standard deviation of the GPA
c.Assuming the distribution is bell shaped what percentage of the students would have GPA's between 1.5 and 3.9? Does this make sense given what you know about GPA's?
Definitions:
Developmental Sequence
The order in which developmental milestones are achieved by children as they grow and mature.
Emotional Experience
Pertains to the complex feelings, sensations, and responses individuals have to various situations or stimuli, encompassing a wide range of emotions.
Interactional Synchrony
The seamless coordination or matching of behaviors, emotions, or communicative exchanges between two or more individuals.
Matching Emotional States
The ability to recognize and mirror the feelings or emotional conditions of others.
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