A survey was conducted by a group of students as a part of their environmental awareness programme, in which they collected the following data regarding the number of plants In 20 houses in a locality. Find the mean number of plants per house.

A survey was conducted by a group of students as a part of their environment awareness programme, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house.

A survey was conducted by a group of students as a part of their environment awareness programme , in which they collected the follwing data regarding the number of plants in 20 houses in a locality . Find the mean number of plants per house . {:("Number of plants","Number of houses"),(0-2,1),(2-4,2),(4-6,1),(6-8,5),(8-10,6),(10-12,2),(12-14,3):}

A survey conducted on 20 households in a locality by a group of students resulted in the following frequency table for the number of famialy members in a household . {:("Family size ","Number of families"),(1-3,7),(3-5,8),(5-7,2),(7-9,2),(9-11,1):} Find the mode of this date.

The root mean square speed of an ideal gas is given by : u_("rms") = sqrt((3RT)/M) Thus we conclude that u_("rms") speed of the ideal gas molecules is proportional to square root of the temperature and inversely proportional to the square root of the molar mass. The translational kinetic energy per mole can also be given as 1/2Mu_(rms)^(2) . The mean free path ( lambda ) is the average of distances travelled by molecules in between two successive collisions whereas collision frequency (C.F.) is expressed as number of collisions taking place in unit time. The two terms lambda and C.F. are related by : C.F = (u_("rms")/lambda) Which of the following relation is correct for an ideal gas regarding its pressure (P) and translational kinetic energy per unit volume (E) ?

In a ratail market , fruit vendors were selling ornges kept in packing baskets . These baskets contained varing numbers of oranges . The following was the distribution of oranges . {:("Number of oranges" ,"Number of baskets"),(10-14,15),(15-19,110),(20-24,135),(25-29,115),(30-34,25):} Find the mean number of oranges kept in each basket . Which method of finding the mean did you choose ?