Construct a frequency table for the following weights (in gm) of `35` mangoes using the equal class intervals, one of them is `40-45` (`45` not included):
`30,40,45,32,43,50,55,62,70,70,61,62,53,52,50,42,35,37,53, 55,65,70,73,74,45,46,58,59,60,62,74,34,35,70,68`
What is the class marks of the class interval `40-45`?
What is the range of the above weights? How many classes are there?

Construct a frequency table with class-intervals 0-5 (5 not included) of the following marks obtained by a group of 30 students in an examination: 0,5,7,10,12,15,20,22,25,27,8,11,17,3,6,9,17,19,21, 29,31,35,37,40,42,45,49,4,50,16.

The water bills (in rupees) of 32 houses in a certain street for the period 1.1.98 to 31.3.98 are given below: 56,43,32,38,56,24,68,85,52,47,35,58,63,74,27,84,69,35,44,75,55,30,54,65 ,45,67,95,72, 43,65,35,59 Tabulate the data and present the data as a cumulative frequency table using 70-79 as one of the class intervals.

A grouped frequency distribution table with classes of equal sizes using 63-72 (72 included) as one of the class is constructed for the following data 30,32,45,54,74,78,108,112,66,66,76,88, 40, 14, 20,15,35,44,66,75,84,95,96,102,110,88,74,112,14,34,44. The number of classes in the distribution will be

Given below are the marks obtained by 30 students of a class, Using the class intervals of equal class size in which one class interval is 30-40 (excluding 40), construct a frequency table. {:(42,74,39,48,42,80,35,38,52,81),(31,72,65,58,77,82,79,65,47,30),(64,56,39,48,60,63,72,50,46,35):}

Construct a frequency distribution table for each of the following distributions {:(" Marks (more than) ", 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100),(" Cumulative Frequency " ,100, 87, 65, 55, 42, 36, 31, 21, 18, 7, 0):}

The water tax bills (in rupees) of 30 houses in a locality are given below. Construct a grouped frequency distribution with class size of 10. 30,32,45,54,74,78,108,112,66,76,88,40,14,20,15,35,44,66, 75,84,95,96,102,110,88,74,112,14,34,44

If the median of the following data is 32.5, find the missing frequencies. Class interval: 0-10 10-20 20-30 30-40 40-50 50-60 60-70 Total Frequency: f_1 5 9 12 f_2 3 2 40

The water tax bills (in rupees) of 30 hours in a locality are given below. Construct a grouped frequency distribution with class size of 10. 30,32,45,54,74,78,108,112,66,76,88,40,14,20,15,35,44,66,75,84, 95,96,102,110,88,74,112,14,34,44

The marks scored by 40 students of class VIII in mathematics are given below: 81,55,68,79,85,43,29,68,54,73,47,35,72,64,95,44,50,77,64, 35,79,52,45,54,70,83,62,64,72,92,84,76,63,43,54,38,73,68,52,54. Prepare a frequency distribution with class size of 10 marks.

The following data gives the weights of 30 persons (in kg) 70.0,69.4,49.4,64.5,59.4,72.4,47.5,48.8,62.3,64.2,66.8,70.3,71.3,56.3,52.7,66.6,59.9,64.7,44.6,60.3,50.3,54.3,62.3,56.3,45.0,45.7,49.8,60.5,67.8,50.1, (i) Construct a frequency distribution such that the last class is 72-76. (ii) State the upper class limits of last three class intervals. (iii) State the maximum weight that can be included in the fourth class interval. (iv) State the class mark of each of the classes. (v) Find the range of the given weights. (vi) If 60kg is the weight of a person then in which class interval, it will be taken.