The frequency distribution of marks in Mathematics obtained by 50 students in an examination is given below. Find mode.

The marks obtained by 30 students in a examination of a class are given below . Find their average.

Marks obtained in an examination is

The frequency distribution of the marks obtained by 76 students in a math. Find the average of marks obtained . {:("Numbers obtained",1-10,11-20,21-30,31-40,41-50,"Total"),("Frequncies",4,14,32,18,8,76):}

The step frequency distribution table of the marks obtained by female students is given below. Calculate the mean marks.

The frequency distribution of the number of accidents in 30 consecutive days in a city are given below. Find the arithmetic mean.

The frequency distribution of the marks obtained in a school is given below. In the table, the number of students who obtained marks from 31 to 40 , is unknown . But it is known that the average of total work obtained by the students is 42.85. Find the lost frequency.

Mode of frequency distribution can be obtained from

The frequency distribution of the monthly incomes (in rupees) of the workers of a small industry are given below. Find the average of their incomes .

The marks obtained by 41 students in an examination in Math are given below: Find the average of the marks obtained by them.

The marks distribution of 30 students in a mathematics examination are given in the adjacent table. Find the mode of this data. Also compare and interpret the mode and the mean .