Question

true or false?
zooming in on a graph (truncating), which makes less of the y - axis visible, will make the change in the data appear more dramatic.
true
false

true or false?
zooming out from a graph, which makes more of the y - axis visible, will make the change in the data appear more dramatic.
true
false

formula 2 points
at state college last term, 68 of the students in a physics course earned an a, 86 earned a b, 118 got a c, 95 were issued a d, and 52

Explanation:

Step1: Calculate total number of students

Total students = \(68 + 86+118 + 95+52=419\)

Step2: Use formula for pie - chart angle

The formula for the angle of a sector in a pie - chart is \(\theta=\frac{\text{Number of students in a category}}{\text{Total number of students}}\times360^{\circ}\)
For \(B\) category: \(\theta=\frac{86}{419}\times360^{\circ}\)
\(\theta=\frac{86\times360}{419}\)
\(86\times360 = 30960\)
\(\theta=\frac{30960}{419}\approx73.9^{\circ}\)

Answer:

Approximately \(74^{\circ}\)