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:
Win/Loss Sparklines
Win/Loss Sparklines in spreadsheet applications represent data trends and outcomes (win/loss) visually in a compact, word-sized format.
Positive Values
Numerical quantities greater than zero, indicating a magnitude or quantity in a specified direction.
Negative Values
Numbers less than zero, often representing deficits, decreases, or inverse quantities in various contexts, including mathematics and finance.
Legend
A key or explanation that helps decipher symbols, colors, or patterns used in charts, maps, or diagrams.
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