The following are the ages of 300 patients getting medical treatment in a hospital on a particular day:
Age(in years)
10-20
20-30
30-40
40-50
50-60
60-70
No. of patients
60
42
55
70
53
20
Form:(1) less than type cumulative frequency distribution
(2)more 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 years) | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 | 60-70 |
No. of patients | 60 | 42 | 55 | 70 | 53 | 20 |
Form:(1) less than type cumulative frequency distribution
(2)more 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 years)
10-20
20-30
30-40
40-50
50-60
60-70
No. of patients
60
42
55
70
53
20
Form:
(1) less than type cumulative frequency distribution
(2)more than type cumulative frequency distribution
Solution:
(1)
Age(in years)
less than or equal to 20
less than or equal to 30
less than or equal to 40
less than or equal to 50
less than or equal to 60
less than or equal to 70
Cumulative
frequency
60
60+42=102
102+55=157
157+70=227
227+53=280
280+20=300
(2)
Age(in years)
more than or equal to 10
more than or equal to 20
more than or equal to 30
more than or equal to 40
more than or equal to 50
more than or equal to
60
Cumulative
frequency
300
300-60=240
240-42=198
198-55=143
143-70=73
73-53=20
The following are the ages of 300 patients getting medical treatment in a hospital on a particular day:
Age(in years) | 10-20 | 20-30 | 30-40 | 40-50 | 50-60 | 60-70 |
No. of patients | 60 | 42 | 55 | 70 | 53 | 20 |
Form:
(1) less than type cumulative frequency distribution
(2)more than type cumulative frequency distribution
Solution:
(1)
Age(in years) | less than or equal to 20 | less than or equal to 30 | less than or equal to 40 | less than or equal to 50 | less than or equal to 60 | less than or equal to 70 |
Cumulative frequency | 60 | 60+42=102 | 102+55=157 | 157+70=227 | 227+53=280 | 280+20=300 |
(2)
Age(in years) | more than or equal to 10 | more than or equal to 20 | more than or equal to 30 | more than or equal to 40 | more than or equal to 50 | more than or equal to 60 |
Cumulative frequency | 300 | 300-60=240 | 240-42=198 | 198-55=143 | 143-70=73 | 73-53=20 |
