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:
$(i)$ Less than type cumulative frequency distribution.
$(ii)$ More than type cumulative frequency distribution.

(N/A) $(i)$ To form a 'less than' type cumulative frequency distribution,we add the frequencies of all classes preceding the current class. Since the data starts from $10-20$,we assume $0$ patients are less than $10$ years old.
$(ii)$ To form a 'more than' type cumulative frequency distribution,we start with the total number of patients $(300)$ and subtract the frequency of each preceding class interval.

Age (in years)	Less than type (Cumulative Frequency)	Age (in years)	More than type (Cumulative Frequency)
Less than $10$	$0$	$10$ or more	$300$
Less than $20$	$60$	$20$ or more	$240$
Less than $30$	$102$	$30$ or more	$198$
Less than $40$	$157$	$40$ or more	$143$
Less than $50$	$227$	$50$ or more	$73$
Less than $60$	$280$	$60$ or more	$20$
Less than $70$	$300$	$70$ or more	$0$