the following data indicates the marks of 53 students in mathematics draw a less than type ogive for the above data and hence find the median
Answers
Answer:
C.I f c.f
0 --10 5 5
10---20 3 8
20--30 4 12
30--40 3 15
40--50 4 18
50--60 4 22
60--70 7 29
70--80 9 38
80---90 7 45
90---100 8 53
N = 53 or N / 2 = 26.5 c.f > N / 2 is 29 and C.I = 60---70
60---70 is median class. Now l = 60, f = 7, F = 23, h = 10
Median = i + N/2 - F/f x h or 60 + 26.5 - 23/7 x 10
60 +40/7 = 64
Step-by-step explanation: