Write the class boundaries of the following classes : 25-29, 30-34, 35-39, 40-44, 45-49, 50 - 54

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)

Write the decimal form of the following rational numbers without actual division. (i) 35/50 (ii) 21/25 (iii) 7/8

Write the complementary, supplementary and conjugate angles for the following angles. (a) 45^(@) (b) 75^(@) (c) 54^(@) (d) 30^(@) (e) 60^(@) (f) 90^(@) (g) 0^(@)

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 .

The following marks achieved by 30 candidates in mathematics of SSC examination held in the year 2010.45, 56, 75, 68, 35, 69, 98, 78, 89, 90, 70, 56, 59, 35, 46, 47, 13, 29, 32, 39,93, 84, 76, 79, 40, 54, 68, 69, 60, 59. Construct the frequency distribution table with the-class intervals, failed (0 – 34), third class (35 - 49), second class (50 - 60), first class (60 - 74) and distinction (75-100).

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

Given the following frequency distribution with some missing frequencies . {:("Class",10-20,20-30,30-40,40-50,50-60,60-70,70-80),(" "f," "180," "-," "34," "180," "136," "-," "50):} If the total frequency is 685 and median is 42.6 then the missing frequencies are

Class intervals in a grouped frequency distribution are given as 4 – 11, 12 – 19, 20 – 27, 28 – 35, 36 – 43. Write the next two class intervals. Write the class boundaries of all classes

The test marks in statistic for a class are 20,24,27,38,18,42,35,21,44,18,31,36,41,26,29. The median score of the class is