網頁Class Boundaries: When data is given to the nearest unit, the class interval 34 – 37, has a lower class boundary of 33.5 and upper-class boundary of 37.5. Consider the intervals below: 20 – 24, 25 – 29 ETC. To obtain the class boundaries of 25 – 29, 24 + 25 = 24.5, 29 + 30 = 29.5. 2 2. 網頁The class marks of a frequency distribution are 15, 20, 25, ..... . Find the class corresponding to the class ... Since, the difference between mid values is 5. So, the corresponding class to the class mark 20 must have …

Answered: The class marks of a frequency… bartleby

網頁The class marks of a frequency distribution are given as follows 15,20, 25, .. The class corresponding to the class mark 20 is 網頁Here you can find the meaning of If the class marks in a frequency distribution are 19.5, 26.5, 33.5, 40.5 then the class corresponding to the class mark 33.5 is:a)37 – 41b)30 – 37c)23 – 30d)16 – 23Correct answer is option 'B'. garren build and guide

Class 9 Mathematics Practice Paper 01 PDF - Scribd

網頁Here, the classes are uniformly spaced. So, the class width is the difference between any two consecutive class marks. Class width = 20 − 15 = 5 If a is the class mark of a class interval of width h, then the lower and upper limits of the class interval are a - h 2 and a + h 2, respectively. Here, a = 20 and h = 5. 網頁31. In a frequency distribution, the class width is 4 and the lower limit of first class is 10. If there are six classes, the upper limit of last class is (a) 22 (b) 26 (c) 30 (d) 34 .U 32. The class marks of a distribution are 15, 20, 25 ….45. The class corresponding to 45 black school white school