From a grouped frequency distribution from the following data by inclusive method taking 4 as the magnitude of class intervals. 31,23,19,29,22,20,16,10,13,34, 38,33,28,21,15,18,36,24,18,15, 12,30,27,23,20,17,14,32,26,25 18,29,24,19,16,11,22,15,17,10

Form a grouped frequency distribution from the following data by inclusive method taking 4 as the class size of class intervals. 31, 23, 19, 29, 22, 20, 16, 10, 13, 34, 38, 33, 28, 21, 15, 18, 36, 24, 18, 15, 12, 30, 27, 23, 20, 17, 14, 32, 26, 25, 18, 29, 24, 19, 16, 11, 22, 15, 17,10

Find the mode of the following data in each case: 14,25,14,28,18,17,18,14,23,22,14,187,9,12,13,7,12,15,7,12,7,25,18,7

The range of the data 12,25,15,18,17,20,22,0,16,11,8,19,10,30,20,38, is

Form a discrete frequency distribution from the following scores: 15,18,16,20,25,24,25,20,16,15,18,18,16,24,15,20,28,30,27,16,24,25,20,18,28,2725,24,24,18,18,25,20,16,15,20,27,28,29,16

From a discrete frequency distribution from the following scores: 15,18,16,20,25,24,25,20,18,15,18,18,15,24,15,20,28,30,27,16,2425,20,18,28,27,25,24,24,18,18,25,20,16,15,20,27,28,29,16

The marks of 20 students out of 25 are given below {:(12,17,22,7,11,19,24,18,4,8),(23,2,5,15,21,16,11,9,12,17):}

The mean deviation about the mean for the values 18, 20, 12, 14, 19, 22, 26, 16, 19, 24 is

For the following data of daily wages (in rupees0 received by 30 labourers in a certain factory, construct a grouped frequency distribution table by dividing the range into class intervals of equal width, each corresponding to 2 rupees, in such a way that the mid-value of the first class interval corresponds to 12 rupees. 14,16,16,14,22,13,15,24,12,23,14,20,17,21,22,18,18,19,20,17,16,15,11,12,21,20,17,18,19,23