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Syllabus
Q. In the tables given below, class-mark and frequencies is given. Construct the frequency tables taking inclusive and exclusive classes.
(i)
(ii)
Q.(1) For class interval 20-25 write the lower class limit and the upper class limit.
(2) Find the class-mark of the class 35-40.
(3) If class mark is 10 and class width is 6 then find the class.
(4) Complete the following table.
Q.13. In the following table, the information is given about the number of families and the siblings in the families less than 14 years of age. Find the mode of the data.
Q.14. Find the mode of the following data.
Q.(vi) The mean of five numbers is 80, out of which mean of 4 numbers is 46, find the 5th number:
(A) 4
(B) 20
(C) 434
(D) 66
Ans. (D)
How to solve this question
Can u explain me
Plz fast
Year 2005-6 income 165 expenditure 155
Year 2006-7 income 180 expenditure 165
Year 2007-8 income 190 expenditure 175
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