Use the data in the grade-distribution table below to construct a circle graph showing the distribution of grade types in Ike’s class.
Grade..Frequency
A......2
B......8
C......11
D......2
F......1
How would the graph in Exercise 7 change if there were twice as many of each grade?
They would just double right?
The cicular graph is constructed based on percentages of each grade. Each percentage is then distributed over the full circle of 360°.
If there are twice as many of each grade, the percentage of each grade will not change, therefore the circular graph (pie-chart) will not change either.
Yes, if there were twice as many of each grade, the graph would change by doubling the frequency of each grade. In other words, the new frequencies would be:
A: 2 * 2 = 4
B: 8 * 2 = 16
C: 11 * 2 = 22
D: 2 * 2 = 4
F: 1 * 2 = 2
So the new data for the circle graph would be:
Grade..Frequency
A......4
B......16
C......22
D......4
F......2
To construct the updated circle graph, you would use these new frequencies to determine the size of each sector in the graph.