Find the range of the given data : 38, 70, 48, 40, 42, 55, 63, 46, 54, 44.

Find the mean deviation about the mean for the following data 38,70,48,40,42,55,63,46,54,44

Find the mean deviation about the median for the data in 36, 72, 46, 42, 60, 45, 53, 46, 51, 49

Find the mode of the following data 12, 24, 36, 46, 25, 38, 72, 36, 25, 38, 12, 24, 46, 25,12,24 ,46, 25, 72, 12, 24, 36, 25, 38 and 36.

Find the median of the following data 46,64,87,41,58,77,35,90,55,33,92 .

The marks of 30 students of a class of 10 in a test (out of 75) are given below 40, 21, 50, 37, 42, 37, 38, 42, 49, 52, 38, 53, 57, 47, 29, 59, 61, 33, 17, 17, 39, 44, 42, 39, 14, 7, 27, 19, 54, 51. Form a frequency table with equal class intervals.

The marks 30 students of a class, obtained in a test (out of 75) , are given below : 42, 21, 50, 37, 42, 37, 38, 42, 49, 52, 38, 53, 57, 47, 29, 59, 61, 33, 17, 17, 39, 44, 42 39, 14, 7, 27, 19, 54, 51. From a frequency table with equal class intervals.(Hint : one of them being 0-10)

Find the median of 9 observations 15,34,25,27,54,38,40,12,10

Find the common difference in in given list: 11,22,33,44,55,66,77,88

The weight (in grams) of 50 oranges, picked at random from a basket of oranges are given below: 35, 45, 55, 50, 30, 110, 95, 40, 70, 100, 60, 80, 85, 60, 52, 95, 98, 35, 47, 45, 105, 90, 30, 50, 75, 95, 85, 80, 35, 45, 40, 50, 60, 65, 55, 45, 30, 90, 115, 65, 60, 40, 100, 55, 75, 110, 85, 95, 55, 50.construct a grouped frequency distribution table

The weights of 50 custard apples are given below . ( In grams ) 35 , 40 , 45 , 40 , 50 , 55 , 60 70 , 75 , 80 , 90 , 94 , 45 , 60 , 65 , 35 , 65 , 35 , 25 , 24 , 34 , 45 , 54 , 63 , 72 , 85 , 99 , 36 , 65 , 49 , 84 , 73 , 54 , 43 , 44 , 23 , 33 , 43 , 53 , 63 , 73 , 83 , 93 , 44 , 55 , 65 , 74 , 89 , 77 , 60 Construct a grouped frequency distribution table with classes 20 – 30 , 30 – 40 , ……………………………… 90 – 100 .