The following table gives the literacy rate (in percentage) of 35 cities. Find the mean literacy rate. Literacy rate (in %):   45-55   55-65   65-75   75-85   85-95 Number of cities:           3         10        11          8          3

The distribution below gives the weight of 30 students in a class. Find the median weight of students: Weight (in kg): 40-45 45-50 50-55 55-60 60-65 65-70 70-75 No. of students: 2 3 8 6 6 3 2

Calculate the median from the following data: Rent (in Rs.): 15-25 25-35 35-45 45-55 55-65 65-75 75-85 85-95 No. of Houses: 8 10 15 25 40 20 15 7

The following table gives the weekly wages of workers in a factory. Weekly wages(Rs) 50-55 55-60 60-65 65-70 70-75 75-80 80-85 85-90 No. of workers 5 20 10 10 9 6 12 18 Calculate the mean, by using Short Cut Method.

The following is the distribution of weights (in kg) of 50 persons: Weight (in kg) 50-55 55-60 60-65 65-70 70-75 75-80 80-85 85-90 No. of Person 12 8 5 4 5 7 6 3 Draw a histogram for the above data.

Following table shows the weight of 12 students: Weight (in kgs) 67 70 72 73 75 Number of Students: 4 3 2 2 1 Find the mean weight of the students.

The following table gives the number of children of 150 families in a village No. of children (x) : 0 1 2 3 4 5 No. of families (f) : 10 21 55 42 15 7 Find the average number of children per family.

Find the mean of the following frequency distributions: Class interval: 25-35 35-45 45-55 55-65 65-75 Frequency: 6 10 8 12 4

The following distribution gives the state-wise teacher-student ratio in higher secondary schools of India. Find the mode and mean of this data. Interpret, the two measures: Number of students per Teacher Number of States/U.T. 15-20 3 20-25 8 25-30 9 30-35 10 35-40 3 40-45 0 45-50 0 50-55 2

From the following frequency distribution, prepare the 'less than' ogive. {:("Rainfall (in cm)",5-15,15-25,25-35,35-45,45-55,55-65),("Number of days",22,10,8,15,5,6):}

The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the median, mean and mode of the data and compare them. Monthly consump- 65-85 85-105 105-125 125-145 145-165 165-185 185-205 No. of consumers: 4 5 13 20 14 8 4