below is a pie chart for a set of data consisting of 5 items. the frequency of item A is 34
A=17%
B=27%
C=21%
D=14%
E=21%
a)find the frequency of B
b)draw the frequency table for the set
c)find the angle of sector representing item C
Dear student,
i) If 17% indicates frequency 34,
then 27 % = 34 / 17 * 27 = 54
Frequency of B is 54.
ii)
iii) C = 21%
Whole circle = 360
100 % = 360
1 % = 360 / 100
21 % = 360 / 100 * 21
C represents angle of 75.6
Regards
i) If 17% indicates frequency 34,
then 27 % = 34 / 17 * 27 = 54
Frequency of B is 54.
ii)
Item | % | Frequency |
A | 17 | 34 |
B | 27 | 54 |
C | 21 | 42 |
D | 14 | 28 |
E | 21 | 42 |
Total | 100 | 200 |
iii) C = 21%
Whole circle = 360
100 % = 360
1 % = 360 / 100
21 % = 360 / 100 * 21
C represents angle of 75.6
Regards