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shainaanderson24
08.07.2019 •
Mathematics
Make a frequency distribution and find the relative frequencies for the following number set. round the relative frequency to the nearest tenth of a percent. some of the answers will be used more than once and some may not be used. 20 22 24 26 27 28 21 23 24 26 27 29 21 23 24 26 27 29 21 23 25 27 28 29 22 23 25 27 28 29 number frequency relative frequency 20 % 21 % 22 % 23 % 24 % 25 % 26 % 27 % 28 % 29 %
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Ответ:
We know that the frequency of an outcome is the number of times that outcome is present in the set.
Also, the relative frequency is the ratio of the frequency to the total frequency and for calculating it in percentage we multiply it by 100.
Number Frequency Relative frequency
20-- 1 3.3% ( Since,
)
21-- 3 10%
22-- 2 6.7%
23-- 4 13.3%
24-- 3 10%
25-- 2 6.7%
26-- 3 10%
27-- 5 16.7%
28-- 3 6.7%
29-- 4 13.3%
Total frequency= 30
Ответ:
1/2y = -x + 1
Multiply both sides by 2
y = -2x + 2
Since both equations equal y you can set them equal to each other.
-2x + 2 = 3x - 1
Solve for X
-5x = -3
x = 3/5
Plug this into one of the equations.
3(3/5) - 1 = y
1.8 - 1 = y
y = .8
(0.6, 0.8)