P-ब्लॉक के तत्व | Class 12 NCERT रसायन विज्ञान | 9 AM Class By Vipin Sir | L20 | Hindi Medium

Class 11 के बाद क्या ? Class 12 Hindi Medium की पढ़ाई साल के शुरू से कैसे करें ?

The marks obtained by 40 students of class IX in an examination are given below: 18, 8, 12, 6, 8, 16, 12, 5, 23, 2, 16, 23, 2, 10, 20, 12, 9, 7, 6, 5, 3, 5, 13, 21, 13, 15, 20, 24, 1, 7, 21, 16, 13, 18, 23, 7, 3, 18, 17, 16 Present the data in the form of a frequency distribution using the same class size, one such class being 15-20 (where 20 is not included)

The marks obtained by 40 students of class VIII in an examination are given below: 18,8,12,0,8,16,12,5,23,2,16,23,2,10,20,12,9,7,6,5,3,5, 13,21,13,15,20,24,1,7,21,16,13,18,23,7,3,18,17,16 Present the data in the form of a frequency distribution using the same class size, one such class being 15-20 (where 20 is not included).

The total number of students in section A and B of a class is 110. The number of students in section A is 10 more than that of section B. The average score of the students in B, in a test, is 20% more than that of students in A. If the average score of all the students in the class is 72, then what is the average score of the students in A? किसी कक्षा के खंड A और खंड B के छात्रों की कुल संख्या 110 है | खंड A में छात्रों की संख्या खंड 9 के छात्रों की संख्या से 10 अधिक है| किसी परीक्षा में B के छात्रों का औसत प्राप्तंक A के छात्रों के औसत प्राप्तंक से 20% अधिक है | यदि सभी छात्रों का औसत प्राप्तांक 72 है, तो A के छात्रों का औसत प्राप्तांक ज्ञात करें |

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12 Construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5 (5 not included). What main features do you observe from this tabular representation?

Consider the marks, out of 100, obtained by 51 students of a class in a test, given in Table 14.9. M a r k s"N u m b e r o f S t u d e n t s"0-10 5 10-20 10 20-30 4 30-40 6 40-50 7 50-60 3 60-70 2 70-80 2 80-90 3 90-100 9Tot a l 51 Draw a freque

The following data : 2, 5, 15, 25, 20, 12, 8, 7, 6, 16, 21,17, 30, 32, 23, 40, 51, 15, 2, 9, 57, 19, 25 is grouped in the classes 0 –5, 5 –10, 10 –15 etc. Find the frequency of the class 20 –25.

The above Venn diagram represent the students who play 3 sports M, N and L in a class Total number of students who play N & L but not M game is: Options are (a) 15 (b) 68 (c) 9 (d) 12.

The marks obtained by 40 students of class IX in an examination are given below 18,8,12,6,8,16,12,5,23,2,16,23,2,10,20,12,9,7,6,5,3,5,13,21,13,15,20,24,1,7,21,16,13,18,23,7,3,18,17,16. Present the data in the form of a frequency distribution using the same class size,one such cliess being 15-20 (where 20 is not included)