Following are the ages (in years) of 360 patients, getting medical treatment in a hospital:
Age (in years)
$10 - 20$
$20 - 30$
$30 - 40$
$40 - 50$
$50 - 60$
$60 - 70$
Number of patients
$90$
$60$
$50$
$80$
$50$
$30$
Construct a cumulative frequency table for the above data.

Open in App

Solution

Organize the cumulative frequency in frequency distribution table:
Cumulative frequency is the sum of the frequency of the concerned class and the value of the predecessors.
Age (in years)
Number of patients
Below $20$
$90$
Below $30$
$150$
Below $40$
$200$
Below $50$
$280$
Below $60$
$330$
Below $70$
$360$
Therefore, the cumulative frequency table is made.

Suggest Corrections

Similar questions

Following are the ages (in years) of 360 patients, getting medical treatment in a hospital:
$\begin{matrix} Age (in years) & 10 - 20 & 20 - 30 & 30 - 40 & 40 - 50 & 50 - 60 & 60 - 70 Numbr of patients & 90 & 50 & 60 & 80 & 50 & 30 \end{matrix}$
Construct the cumulative frequency table for the above data.

Q. Following are the ages (in years) of 360 patients, getting medical treatment in a hospital:

Ages (in years)	10−20	20−30	30−40	40−50	50−60	60−70
Number of patients	90	50	60	80	50	30

Construct the cumulative frequency table for the above data.

Q. Following are the ages of 360 patients getting medical treatment in a hospital on a day:

Age (in years):	10-20	20-30	30-40	40-50	50-60	60-70
No.of Patients:	90	50	60	80	50	30

Construct a cumulative frequency distribution.

Following are the ages (in years) of 360 patients, getting medical treatment in a hospital:

Age (in years)	10 – 20	20 – 30	30 – 40	40 – 50	50 – 60	60 – 70
Number of patients	90	50	60	80	50	30

One of the patients is selected at random.
What is the probability that his age is
(i) 30 years or more but less than 40 years?
(ii) 50 years or more but less than 70 years?
(iii) 10 years or more but less than 40 years?
(iv) 10 years or more?
(v) less than 10 years?

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
Number of patients	60	42	55	70	53	20

Form a 'less than type' cumulative frequency distribution. [CBSE 2013]

Join BYJU'S Learning Program

Age (in years)	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$	$60 - 70$
Number of patients	$90$	$60$	$50$	$80$	$50$	$30$

Age (in years)	Number of patients
Below $20$	$90$
Below $30$	$150$
Below $40$	$200$
Below $50$	$280$
Below $60$	$330$
Below $70$	$360$

Following are the ages (in years) of 360 patients, getting medical treatment in a hospital:Age (in years)10-2020-3030-4040-5050-6060-70Number of patients906050805030Construct a cumulative frequency table for the above data.

Following are the ages (in years) of 360 patients, getting medical treatment in a hospital:
Age (in years)
$10 - 20$
$20 - 30$
$30 - 40$
$40 - 50$
$50 - 60$
$60 - 70$
Number of patients
$90$
$60$
$50$
$80$
$50$
$30$
Construct a cumulative frequency table for the above data.