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Question
Question 13(i)
The following are the ages of 300 patients getting medical treatment in a hospital on a particular day
Age(in year)10−2020−3030−4040−5050−6060−70Number of patients604255705320
Form
(i) Less than type cumulative frequency distribution.
The following are the ages of 300 patients getting medical treatment in a hospital on a particular day
Age(in year)10−2020−3030−4040−5050−6060−70Number of patients604255705320
Form
(i) Less than type cumulative frequency distribution.
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Solution
(i) We observe that the number of patients which take medical treatment in a hospital on a particular day less than 10 is 0. Similarly, less than 20 include the number of patients which take medical treatment from 0-10 as well as the number of patients which take medical treatment from 10-20.
So, the total number of patients less than 20 is 0 + 60 = 60, we say that the cumulative frequency of the class 10-20 is 60, Similarly, for other class.
Less than typeLess than typeAge(in year)Number of studentsLess than 100Less than 2060Less than 30102Less than 40157Less than 50227Less than 60280Less than 70300
So, the total number of patients less than 20 is 0 + 60 = 60, we say that the cumulative frequency of the class 10-20 is 60, Similarly, for other class.
Less than typeLess than typeAge(in year)Number of studentsLess than 100Less than 2060Less than 30102Less than 40157Less than 50227Less than 60280Less than 70300
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