SOLUTION: The following data represents the age of 30 lottery winners. Given the frequency distribution for the data, Each column (left to right) is as follows: Age, Frequency, Relativ

Question 1133438: The following data represents the age of 30 lottery winners.
Given the frequency distribution for the data,
Each column (left to right) is as follows: Age, Frequency, Relative Frequency, Cumulative Relative Frequency

[20,29] 1 0.0333 0.0333
[30,39] 7 0.2333 0.2666
[40,49] 4 0.1333 0.3999
[50,59] 5 0.1667 0.5666
[60,69] 9 0.3 0.8666
[70,79] 3 0.1 0.9666
[80,89] 1 0.0333 0.9999

(a) What is the frequency of lottery winners of age between 19 and 40?
(b) What percentage of lottery winners are 70 years or older?
(c) What is the relative frequency of ages under 40?
(d) What is the cumulative relative frequency of lottery winners younger than 50?

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
a. For between 19-40, I have to assume it is 20-39, for there is no way to do 40 alone, but the 40s can be completely excluded. There are 8.
b. 70 or older is 0.1333 or 4/30 or 13.3%
c. under 40 age relative frequency is 8/30 or 0.2666
d. is 0.4000 (there are 12 under 50 out of 30 altogether).
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