Mathematics
Related Questions
Construct a frequency table from the following cumulative frequency table :
Class interval Cumulative frequency 1-10 7 11-20 15 21-30 30 31-40 42 41-50 60 51-60 75 For the questions with numbers 92 and 93, given above, draw a :
(i) Histogram
(ii) Frequency polygon
(iii) Frequency polygon using histogram.
Find median for the following data :
50 59 27 78 54 72 58 57 31 65 42 60 22 37 40 and 28 The mean of 20 numbers is 20. If 2 is added to each of the first 10 numbers, find the mean of the new set of 20 numbers.