Mathematics
The mean of 1, 7, 5, 3, 4 and 4 is m. The numbers 3, 2, 4, 2, 3, 3 and p have mean m - 1 and median q. Find p and q.
Related Questions
In a malaria epidemic, the number of cases diagnosed were as follows :
Date (July) Number 1 5 2 12 3 20 4 27 5 46 6 30 7 31 8 18 9 11 10 5 11 0 12 1 On what days do the mode, the upper and the lower quartiles occur ?
The median of first six prime numbers is :
5
7
6
7.5
The inter quartile range for the given ogive is :
42
32
44
54
The marks obtained by 120 students in a Mathematics test are given below :
Marks No. of students 0 - 10 5 10 - 20 9 20 - 30 16 30 - 40 22 40 - 50 26 50 - 60 18 60 - 70 11 70 - 80 6 80 - 90 4 90 - 100 3 Draw an ogive for the given distribution on a graph sheet. Use a suitable scale for your ogive. Use your ogive to estimate :
(i) the median
(ii) the number of students who obtained more than 75% marks in a test ?
(iii) the number of students who did not pass in the test if the pass percentage was 40?
(iv) the lower quartile.