The following table gives the distribution of the life time of 400 neon lamps

Find the median life time of a lamp.

The following table gives the distribution of the life - time of 400 neon lamps. {:("Lif time (in hours)","Number of lamps"),(1500-2000,14),(2000-2500,56),(2500-3000,60),(3000-3500,86),(3500-4000,74),(4000-4500,62),(4500-5000,48):} Find the median life -time of a lamp .

The following table gives the distribution of 45 students across the different levels of Intelligent Quotient. Draw the histogram for the data.

The following table gives the distribution of 45 students across the different levels of Intelligent Quotient. Draw the histogram for the data.

The distribution below gives the weights of 40 students of a class. Find the median weight of the students.

The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the median of the data.

A life insurance agent found the following data about disribution of ages of 100 policy holders . Calulate the median age . [ Policies are given only to persons having age 18 years onwards but less than 60 years . ]

Organisms that breed once in their life time are