WebA class teacher has the following absentee record of 40 students of a class for the whole term. Find the mean number of days a student was absent. Solution: Find the midpoint of the given interval using the formula. Midpoint (x i) = (upper limit + lower limit)/2 The mean formula is, Mean = x̄ = ∑f i x i /∑f i = 499/40 = 12.48 days WebThe marks obtained by 30 students of Class X of a certain school in a Mathematics paper consisting of 100 marks are presented in table below. ... The marks obtained by 40 students in a short assessment is given below, where a and b are two missing data. If mean of the distribution is 7.2. find a and b.

The marks obtained by 40 students of a class in examination

Web30 mrt. 2024 · Transcript Question 22 Find the mode of the following distribution of marks obtained by the students in an examination: Marks obtained 0 – 20 20 – 40 40 – 60 60 − 80 80 − 100 Number of Students 15 18 21 29 17 Given the mean of the above distribution is 53, using empirical relationship estimate the value of its median. Web5 mei 2024 · The marks obtained by 40 students of a class in an examination are given below: 8, 47, 22, 31, 17, 13, 38, 26, 3, 34, 29, asked Jul 6, 2024 in Statistics by Dheeya ( … disease mod minecraft 1.12.2

Arithmetic Mean for Frequency Distribution – Statistics

WebThe marks obtained by 40 students of a class in an examination are given below. 3,20,13,1,21,13,3,23,16,13,18,12,5,12,5,24,9,2,7,18,20,3,10,12,7,18,2,5,7,10,16,8,16,17,8,23,24,6,23, … WebMarks obtained by 40 students in a short assessment are given below. Find ‘a’ & ‘b’ mean = 7.2 Q. In a Mathematics test, the following marks were obtained by 40 students. … WebFirst we have to write numbers in a row from 110 to 90. That is 10 20, 30, 40 50 60 70 80 90 and then Students have achieved 1010 marks are two candidates 20 marks are three … disease modifying multiple sclerosis ms agent